If you would need liquid cash, i suggest you cash out right now without risking. But if you "can" hold your coins, hold them. With the price right now, its not the time to sell. Rather buy more if you can and wish to profit in the future.

Bank = centralized.
Bitcoin = decentralized.
Deposit your bitcoins in bank and you lose control over your money whereas the bank will have full control of your coins and maybe deny access to it anytime they wish, meaning your bitcoin being  no more decentralized. Might happen in future, but the question is how many people will opt in?

Keep an eye on the forum and read news articles. You get the hint from users and news when its a green signal and safe to trade.
Read and follow this topic: https://bitcointalk.org/index.php?topic=2012799.0
Will help you a lot!

The price might go down more. You could sell now and buy when it goes lower or you can just hold your coins. Price is dropping just cause of investors panicking, just few more weeks till we get to know whats going to happen on august 1. Prices will go back stable after then.
LOL!

One should never consider gambling as a form of earning money/bitcoin. Not even as the worst options. There are many other "worst" options which is far better than gambling with better outcome. You should gamble just for fun!

Panic sale has already started. We have more than a week to go before august 1. I am assuming the price will be under $1300 for now. Perfect time to buy and not regret later. 

You can't chat cause you got muted or something? If you are truly sorry for breaking the chat rules, try appealing your mute through support.

Theymos made a thread for August 1 / BIP148. Check the news which can be found under your avatar.
The short version of it: https://bitcointalk.org/index.php?topic=2017191.0
The detailed version of it: https://bitcointalk.org/index.php?topic=2012799.0

These guides might help answer some of your questions!

Might be some phishing emails too. Make sure you double check which site it redirects you to. They might take you to a similar looking name and site, ask you to login and make their job easier.  Always double check and stay safe.

Exchange isn't the safest place to store your coins. You can store it on your computer, but computer virus and infections are risks you should not be taking. Try investing on hardware wallets. They aren't very expensive but worth buying. Else you could go for paperwallet like everyone suggested.

Somehow your username/e-mail and password got compromised. Do you use the same username and password on different sites (crypto related)? If you do maybe there might have been a database leak on one of those sites and now those who got hold of it are randomly trying to login on different exchanges/crypto related sites. Best to change all your password if you wish to avoid future troubles.

People just use different exchanges for different coins. Most of the alt coins are just shit coins with only pump and dumping going on.
Cryptopia does have a lot on alt coins, but i don't find them reliable.
Just open up different accounts on different exchanges. Will be safer since you wont be sticking to one exchange and lose all if that exchanges goes total scam.

Trusted Escrow List: https://bitcointalk.org/index.php?topic=855778.0
Private message anyone from the list (all of them are trusted) and he will get touch in with you. The list includes the escrow service fee.

That's why he is looking for an escrow. Escrow = safe trade.

It is possible. But before running around and asking for funds to need to show something to the investors like story line and other stuffs. No one is going to invest on empty vessels. They need guarantee and security of their investments. Also make sure your crews are fine with getting paid in bitcoin or ether.

Only reason to hold is to make profit which cannot be assured. If you sell, you end up with a loss. Just hold and hope that it rises back up again. If you invested on legit coins(not shitty scam coins / pump-dump coins) with a strong and active devs, the price is likely to go up back again.
Right now alt coins are in downtrend. Maybe invest now?

This isn't the right section to post about scams. Post it on scam accusation section using proper format with proof.
Better be careful next time.

He clearly states on his post that  paypal does not support his country so he cannot register his account. Read his post properly before commenting?

He has bitcoin, not paypal. So he can't reverse any transaction.

Wrong section.Post on digital goods section.
Users should use escrow so both party stays safe!

None of the online web wallets are safe. Use offline/desktop wallet to store your coins. Backup your wallet regularly. Try using core wallet or you what a light wallet you can try electrum.

You should transfer your coins to an exchange and then transfer it to your bank account. Try coinbase.

Pump is the stage where we will see dramatic rise of price of a coin which is made artificially(manipulated)  by users who will then try to profit. They start buying those coins in huge amount causing the price to increase dramatically. They start creating a fuzz about the coin and other users starts joining the hype train which in turn causes the price to rise more. Then comes the dumping stage where the main players starts to sell their coins thus the price goings down. Other users also panics and ends up selling their coins which results in further crash.

Like others said, its gone forever. Sadly you can not recover it anymore 
But hey! At least you/he learned a lesson. Next time you have bitcoins stored, make sure to make a backup (remind your friends too ). A good lesson learned by sacrificing some coins