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I doubt you can get any airdrops from those but they can't get into your wallet without keys anyway.

I don't think I'll win anything either kk, some profiles are verified and say "the first 500 receive aidrop of x token" but nothing kkk, just hoping. If they don't have the keys and can't do anything about it, I'm more relaxed.

They probably just want engagement/followers to boost their account. I've seen plenty of fake giveaways on twitter.

True, I fully agree with what you've said.

i think people do that to farm engagement on their tweets

It really makes sense, it's just a way of generating traffic to that post, with lots of people throwing their wallet addresses in there.