Strange, I always thought only organising giveaway threads was a bannable offense, not participating in such. I was wrong though:
Most giveaway threads are no longer allowed in the Alternate cryptocurrencies sections. From now on, posting or replying to such threads could result in being banned. ...
If so, you're not the only one, there are over half a thousand replies in there

Strangely, the topic is still not locked by the mods. Maybe they want to keep it open as a honeypot...