You can wait till bitcoin will start another up run or you can sell when bitcoin price will remain constant after this correction. When bitcoin price will go up, ETH and other top alts will get dump. So better to wait few more days and make decision according to market move.

All this things like value, price, legal issues etc are secondary factors to affect bitcoin, primary factor is number of active nodes.

The only case that can lead to death of bitcoin could be all data from computer that are running bitcoin nodes get completely formatted. Which is practically impossible, so it is practically impossible for bitcoin network to get shut down completely or die.

Actually the FUD about PBOC investigation have brought price down earlier this year and right now all panic traders have already shorted their bitcoin. Buy support looks very strong right now so i don't think we have to worry about getting another dump soon.

I mostly do altcoin trading and what could be best place than poloniex, they have really high trading volume and less amount of shit/dead coins.

Other than poloniex, i also ocassionally trade on bittrex and yobit.

Only panic traders will short their bitcoin on this type of fuds. There is nothing to worry about, fud is already over and now bitcoin is in strong hand. More regulation means less manipulation by chinese traders, so we will now have better buy support (real one).

You may be talking about MLM coin getting listed in altcoin trading platform other than their internal. The answer is no and even if there are any, the price on external exchanger will be way lower than in internal so you are forced to sell those coin on predetermined manipulated price in internal trading platform.

Better not to get fooled by all big promises made by those crypto based MLM projects.

In blockchain.info web wallet you can click on advanced option while sending, there you will see recommended fee which is preset according to your size of transaction and in below that it will show how much time it may require to get confirmation. If you lower that fee you have to wait more hours so better to go with recommended fee.

Actually blockchain isn't increasing fees by themselves they will just suggest you fee according to your transaction size. If you have received small amount of bitcoin several times than to send out what you have in total, there will be lots of inputs which will increase size of transactions which in turn will also increase fee.

I have also got this types of failed login attempt several times from c-cex and other sites. And i think it is due to my own negligence, i keep using same personal email address to register in every site i came through in past. Better to use separate email for exchages/wallets and separate one to register in new programs.  

Buying bitcoin with credit card is ok but paypal strictly restrict buying bitcoin with paypal. What this site seem to be doing is running their site as lending platform where lender will give bitcoin to site, another user will pay with paypal to that lender and site releases those bitcoin to the one who have paid from paypal according to this https://xcoins.io/how-it-works

If paypal find this out, they will end up losing their paypal account and they may shut down this service. Better to be careful with this one, this type of service can't run long.

As per this page https://www.epay.com/en/fees.htm
Fee for deposit is 0.5% not free but quite surprised to see 0% fee while sending money to other epay users.
However they are regulated one so actually they will be in control of your money, not you. They are just like paypal, skrill but with very low fee which they may increase in future.

They seems pretty new payment processor to me, i will suggest to use them with some caution.

Whenever mempool is full with transactions waiting for confirmation transactions with high fee will get priority to be included in block by miners. Mempool can be full either due to huge number of bitcoin transactions triggered by some event or attack on bitcoin network by competitors, in both case you can wait for few hours till those mempool drops out few transactions if you don't like to pay more fee.

If you don't like to keep fee manually why don't you use web wallets which will suggest you recommended fee. Also paying little bit more satoshi to be sure that your transactions will not stuck for hours is not that bad/expensive. 

You can post your deal over currency exchange board of this forum however there will be nobody willing to give you bitcoin for your skrill at market rate. Also as you are newbie nobody gonna take risk of chargeback, you may have to find trusted escrow first before doing any deal.

If you don't like to go through all this steps, you can search for offers either in localbitcoins or in paxful but you will not get it there at market rate for sure. Best option could be withdrawing skrill to your bank and than buying bitcoin with some local guy with face to face deal.

Actually if we are using the address from where we will be sending out bitcoin just once, than there may not be any problem in just pasting our private key in your site but pasting private key of our personal bitcoin address may lead to different problem in future related to personal privacy as well as any bitcoin that we will receive in future may get directed to another address.

I have recently sent some bitcoin with around 70 satoshi per byte fee and it get confirmed within next 2 blocks. So whenever there will be attack on bitcoin network or whenever there will be lots of unconfirmed transactions in mempool just include high fee per byte than it will went through smoothly.

There are so many threads already asking how to start trading you can go through them to have an idea. Few of such threads are listed below;
https://bitcointalk.org/index.php?topic=1396650.0
https://bitcointalk.org/index.php?topic=1770001.0
https://bitcointalk.org/index.php?topic=1519299.0
https://bitcointalk.org/index.php?topic=1702677.0

Hope next round will be in worldwide scenario, bitcoin is booming in india after demonetization and china always love bitcoin. So you better also include them  within this survey and more countries in next one. Good luck..

What you think about using hardware wallet like trezor where one recovery phrase can be used to recover whole wallet and unlike web wallets your wallet file will not be stored anywhere online.

Also electrum like light weight wallet can be considered safer than online wallet.

Quite surprised to see bitcointalk.org in 5th place i thought it will be within top 3. 
Also how zcash is considered as bitcoin related sites, this is just a name of alt.

Last few days i am seeing ad about https://adsterra.com/ in several places and few of my friends are also saying they are using it in place of google ads and earning good amount. They don't have same rate like google adsense but my friends are claiming it is better than usual bitcoin adnetworks. And they also pay in bitcoin..