As a precaution, until I hear people claiming they can actually do something on the site aside from simply log in, I'm not going to provide my credentials yet. That said, this is quite exciting and I have more faith now than before that I'm finally going to get access to my coins soon!!!
To be honest, your precaution can work in either way.
Let's assume the site is legit (old btce domain, posted on the forum, on the twitter account, it has the complete database ecc).
But let's also assume that it has been somewhat compromised, as per statement by admins.
The longer you wait to change your credentials, the longer a scammer can work to obtain your account
And then... patiently waiting for withdraws to be enable again.
So, there is really no valid precaution right now.
I actually logged and changed my credentials (the site had my correct pass and my original 2fa key, along with my balance, transactions ecc).
The reason is this:
the site seems legit, a lot of proofs sustain this.
But if it is a scam, it means that all the btc-e ecosystem has been compromised.
Forum, twitter, domains, database, balances, passwords and so on...
Therefore, is not a simple scam... it means that all BTC-e belongs to some entity (FBI or someone else).
Therefore our coins are gone.
But if this is the case, there was no point to put the site up again.
we do not own the private keys for the wallets. There is no reasons to steal our credentials, when you have the entire BTC-e already in your hands.
Logging and changing the password was the more conservative choice.