It is not a matter of "if". It will undoubtedly happen as long as the transaction is valid on both chains, so as soon as you broadcast one transaction on one chain it will instantly get relayed on to the other.
There are better "replay protections" than yours, just read the forums.

What wallet do you use with that BTC address? If the wallet lets you export the private keys, do that and import them to your BCC wallet.

You can lock a transaction by both the time and certain block. You however will not be able to broadcast those transactions until the lock time has passed.
Check https://github.com/bitcoin/bips/blob/master/bip-0065.mediawiki for more information.

Wrong. Input are inputs, those whole 6 inputs could have been from one single transaction (not the case this time), not necessarily from six different.

Yes you are missing something. Press "Show scripts & coinbase" and you'll see that the transaction has 6 inputs.

You haven't posted here since 2013 and after 4 years of absence you come back here with these amazing offers, but ok I'll take it.

I really don't understand what kind of wallet you are talking about but I'm guessing it's blockchain.info. I don't know how it works but I found this post:
So do that if you want to use blockchain.info. If you don't (which I recommend) use Electrum and when you start it for the first time choose "Restore a wallet or import keys" there just put your private key and enjoy having full control of your coins unlike in blockchain.info because as far as I researched it doesn't give you the option to export your private keys.

Since you used bitaddress.org you can just simply go to the "wallet details" tab on bitaddress.org and paste the private key that you have. Then copy that other private key and import into your wallet and spend it.

Seems to me that they only do this when the mempool is empty. And so fee paying transactions shall confirm as normal.
Nothing to worry about. (apart from filling people's hard drives with little data)

Got a vouch copy.
TL;DR Very stale method.

First of all the method is no way near blackhat. Abusing the site rules, sure but not blackhat. You will basically be getting free stuff and selling it for couple bux. What you will be trying to sell can bet get for free (not only from the site but people actually give it for free, although it's a lot harder to get it for free from people). This method was being used by many people for over 10 years. There is lots of supply and little demand and so there are lots of people who sell the product very cheaply because there is lots of competition between the suppliers who will sell cheaper. On top of that, at the very top of the pdf file it says "Cash Overflow" a quick google search and I found this site www.cashoverflow.in so I have a feeling it was stripped from there.

Can you make money with this?
Yes, it will probably make you money, but not too much. And there is lots and lots of hardwork involved.

10k a year? That's a little bit over 800$ a month. So not too much, not sure what kind of blackhat this is.
Though I can take the vouch copy and I'll write a review.

Don't use any traditional wallets myself, but my guess is that those are change addresses. They do not show up but they are in your wallet, when you'll try to spend them you will be able to.

And that's exactly what I meant. Though if the fees are below recommended and mempool's size does not decrease the transaction wouldn't have been confirmed.
That statement is correct though it wasn't the case since his second transaction did not spend outputs from first transaction. It double-spent first transaction.
You are 100% correct on this one. Probably ViaBtc has some checks to see if it's double-spend or not. Though it's strange that they monitor even transactions with a fee of 1sat/B.
I apologize you are not spamming. It's just that his second transaction couldn't have been accepted by ViaBtc.

They are already dropped from the "network" though they will still stay in your wallet. You should zapwallets. And then everything should be ok.

Didn't know it, and if that's the case then you are probably right. Though for me it was pretty clear that OP wants to crack wallet's password.

Hehe. No. Don't worry, tomorrow the mempool will be close to empty and then is when your transaction will get confirmed.
I do not guarantee it, but the size of the mempool is usually a lot smaller on weekends.
Also you sure you don't have private keys associated with these addresses 1MJF22LL41V1BNdvzucU4z41T5pEoZ5Xio ; 14SqwLchTWUwjK35Vs8cWU9jzZQa1KLMou
Because if you do you could CPFP and your transactions would be confirmed in less than an hour.

It will not. Please read the the whole thread before spamming your signature.
Still too small. But the weekend is almost here so mempool should clear up. Also I said what fee you should use (0.0005BTC).
You can also check them here bitcoinfees.21.co

Edit: I read more posts of LoyceV and it doesn't seem like he's a signature spammer. Still though next time read a little bit more of the thread not just first and last reply.

As long ass the first transaction is unconfirmed, yes.

Haven't used bitcoin core wallet for years. But it should be something like this:
In console tab (if that thing even exists in newer wallets) type signrawtransaction rawtx.
Replace "rawtx" with one of those that I gave you.
I do not guarantee it will work. As I said I don't use any standalone wallets.

First output or first transaction. If it's first transaction than forget about it, that transaction will never confirm.
Again second output or second transaction? Do you own any of these addresses?
1MJF22LL41V1BNdvzucU4z41T5pEoZ5Xio
14SqwLchTWUwjK35Vs8cWU9jzZQa1KLMou
If yes, do what I told earlier, if no double-spend that transaction and now send it with a truly high fee. At least 0.0005BTC