First of all note that it's not possible to delete an account on this forum.

I'm not sure I am understanding you correctly. Is your problem with the saved username and the password of that account on your browser?
If so, any browser you are using, it should allow you to remove saved usernames and passwords.
For example, in Chrome you can go to "Manage passwords" and remove any password you want. In Firefox, you can click on "Menu" button and then select "Passwords".

No, that address is owned by pointbiz. (Look at his/her signature).

Your transaction fee is too low and as it hasn't been flagged as RBF, you can't increase the fee.

Do you have control over the receiving address?
If you own the receiving address and it belongs to a non-custodial wallet, you can implement CPFP (Child Pay For Parent) method.
In this method, you should spend the output of the unconfirmed transaction with a high fee, so it makes both transactions confirmed in a same block.

If you don't have control over the receiving address, there's nothing you can do other than wait.

You are right. They don't allow users to deposit and withdraw bitcoin. But they have announced that they will allow users to do so in future. There is no detailed information about their plan and when they will implement this, off course.

Reference: PayPal Will Let Customers Withdraw Crypto, Exec Says

Not reusing an address means not using an address for receiving bitcoin multiple times and not using the sending address as the change address.
It doesn't mean you shouldn't spend the fund you have received.

You should use every address two times. One time for receiving bitcoin and one time for spending bitcoin. After that you should no longer use that address.

Again, note that you can use any bitcoin address numerous times. You shouldn't reuse an address only if you want to protect your privacy.

All is related to your privacy.
It is always recommended to not reuse addresses. There's no difference if the address is a change address or not.
Let's say you are supposed to send me bitcoin. If I give you a used address, you can check all my previous transactions easily.

It is also recommended to not use the sending address as the change address and always use a new address as your change address. In this way, the remainder of your fund is moved to a new address after every transaction and tracking your previous transactions becomes difficult.
If you use the sending address as the change address, it's easy for every one to find out which output is the change and which one is the recipient address.

All wallets I know create the BIP39 seed phrase with a correct checksum.
Electrum allows you to import a seed phrase even if the checksum is not correct. When electrum displays a message saying checksum is failed, it is actually warning you that the seed phrase you are using isn't standard and you will not be able to recover your private keys using other wallets.

Note that in a 12 word seed phrase, there are 132 bytes while the last 4 bytes are checksum. (Each word includes 11 bytes)
When you generate a BIP39 seed phrase, you actually select 128 out 132 bytes by chance and the last 4 bytes are a function of other bytes.
If the last 4 bytes are selected arbitrary, we will have a non-standard BIP39 seed with a failed checksum.

Are you sure you checked "BIP39" when creating the wallet?
I used the same seed phrase for creating the wallet.
As you see in the image below, it's possible to click on "Next".




If you check BIP39, Electrum can create the wallet even from random characters either in desktop or in mobile.
Look at images below.







Edit:
I was using an old version of electrum on my mobile. I just updated it to the latest version.
It no longer allows me to create a wallet with a non-BIP39 seed or a failed-checksum BIP39 seed after I check "BIP39".

Charles-Tim is right about the mobile version.

I don't know why developers designed the new version in this way.
This makes the recovery difficult for those who have made a wallet with a failed-checksum BIP39 seed and don't have access to the desktop version for any reason.

As stated by nc50lc above, this is why no one should use a non-standard method for creating a HD wallet.

First of all, you should know that you can't upgrade an existing wallet to another type.
For example, you can't upgrade a legacy wallet to a segwit wallet. If you want to store your bitcoin in a segwit address while it's now in a legacy address, you have to create a new wallet and send all your fund from the old wallet to the new wallet.

Now let's back to your question.
Electrum doesn't generate a nested segwit wallet for you.
If you want to have a nested segwit wallet in electrum, you have to generate a BIP39 seed phrase somewhere else and import it into electrum. For this purpose, you must  select "I already have a seed", check BIP39 seed on "options" and select p2sh-segwit as the script type when creating the wallet in electrum.


By the way, is there any reason you want to use a nested segwit wallet?
You can pay lower fees using a native segwit (bech32) wallet.

One of problems is that Armory doesn't generate native segwit addresses at all. But OP is talking about an address starting with bc1q.
The other problem (as rightly mentioned by you) is that he is probably entering an invalid private key.

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You can import private keys that start with 5 into electrum and there is no need to make any conversion.
Look at images below. I imported private keys exported from Armory wallet into electrum without any problem and generated same addresses.  

The bc1q address OP is talking about can't be an Armory address. Armory doesn't generate bech32 addresses.

Armory generates legacy addresses (by default) and nested segwit addresses.
Armory also generates P2SH-P2PK addresses. As far as I know, Armory use a specific script type for generating these addresses and they can't be imported to electrum.

What do you mean by recipient address? Do you mean the address you are going to send bitcoin to? If so, it can't help you.

When you deposited to Armory, you used an address for receiving bitcoin. That's the address you need to find in Armory. As Armory generates legacy addresses by default, it probably starts with 1.
If you don't know what was the address you used when receiving bitcoin, copy and paste all private keys into electrum. One of them should be associated with your address.
Note that private keys start with 5, K or L.

So, you only need to export the private key of the address you sent bitcoin to.

Check "Address String" when exporting private keys. (It's shown in the image below.)



Then try to find the address you sent bitcoin to. Copy its private key and paste it into electrum.
(The private key is below the address and in front of "PrivBase58".)

Electrum allow you to click on "Next" button and generate the addresses even if there are extra spaces either at the beginning of the private key, or at the middle or at the end.
Look at the image below. It's possible to click on "Next" button even with these extra spaces.  

If you have entered a valid private key into electrum, it should be possible to click on "Next" without any problem.
Didn't you entered any extra character when entering your private key(s) into electrum by any chance?

Your private keys should be like as shown in the image below.

The best thing you can do is export your private key(s) from Armory and import it into another wallet like electrum.
Visit the link below and read the guide provided by HCP on how to export your private keys form Armory.

Re: update armory wallet 0.96

For importing the private key(s) into electrum, you need to select "Import bitcoin addresses or private keys" when creating a new wallet and enter your private key(s).

Warning:
Download electrum only from its official website and do not forget to verify your download.

I tried very much to reproduce the same thing doing what you did. I couldn't until I figured out something weird.

Go to "Preferences" and then "Fiat" tab. Change the "Fiat currency" to "None". Now do those steps.
You will see that "Max" button won't be disabled.

Go to "Fiat" tab and change the "Fiat currency" to USD or any other currency. Now do those steps.
You will see that "Max" button will be disabled.
There is no need to change something in "Transactions" tab. It's enough to open "Preferences" and close it.

What I understood is that, the "max" button is disabled after opening and closing "Preferences" only when electrum is showing the fiat value.

Each RP is now 18.2% of the base reward of the faucet, because we can't have less than 1 satoshi. If we could have less than 1 satoshi, 1 RP would be now 0.2 satoshi.
For any bitcoin price higher than 5000 dollar, 1 RP has to be 1 satoshi unless they add the 9th decimal place in future.
I remember the days each RP was more than 1 satoshi. RP value (in satoshi) decreased with the rise in bitcoin value. But it never decreased to less than 1 satoshi, because 1 satoshi is the smallest amount of bitcoin on freebitco.


Thanks for noticing my mistake. I just edited that post.

Yes, no one has access to private key of these addresses.

Note that any private key can generate a bitcoin address. But you can't generate the private key from a bitcoin address.
Since these addresses have been generated without a private key, there is no way to derive their private key.

The reward point hasn't always been 1 satoshi.
Each reward point is worth 3.75% of the base reward of the faucet (Click here to see the reference.)
The base reward is 0.002 dollar and each reward point should be 0.000075.

Given the current price of bitcoin, each reward point should be 0.2 satoshi.
Since there are only 8 decimal places for each bitcoin on freebitco, 1 RP cannot be less than 1 satoshi.