yes. if you like collecting ANC, it is much better not to store it in an exchange address.
you don't need to keep wallet running. Just remain in control of that address

so to receive ANC, can i just send my ANC from exchange to web wallet, then back to exchange again, then be in control of that address?

ANC? ANC is antcoin, made from antshares, aka ANS, they are different. You have to send ANS to bittrex, not your ANT

Antshare could be big next year.

I also don't understand about this, in the wallet there are two types of coin.
Can anyone here who can explain?

I have ANS,how can I convert them to ANC?Will it happen automatically when I send them to my wallet? I entered priv keys in ico website and then in web wallet but web wallet still not showing any ANS or ANC

He already said that they do that manually and it's also said on the site after claiming. Something like "you'll receive your ANS within a week".

Why do we must make an ans transaction to claim anc?

What is the purpose to block anc in this way?

Thanks

When opening the client let it update the chain first before opening your wallet or create a new one, I had the same it crashed several times but after the full chain was downloaded it worked again.

I still have the problem it crashes after having it open for several hours, but at least I can move my antshares again.

Hope this works for you.