I have been asking myself the same question when it comes to using my keys for logging in... Well, I guess I will wait and then time will show!

Airdrops don't make me bullish about a coin itself (I might have written in an unclear way), but an airdrop might give the coin a bullish short-term perspective, considering how people pump and dump coins because of the same (just see the Nuls chart for the last weeks, as they have an airdrop coming up in about 12 hours).