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Now I see!
Meaning before one could go into such altcoin investment some info needs to be digged out to know their origins, and does it mean they got those old tweet deleted to basically keep their account clean from suspicion and those who go about hunter for a project to double there money may not know what the interior motives of the project owners.
You nailed it. Criminals don't like leaving trails. Whenever you find a trail it could simply mean that either someone in the gang fucked up or the criminal(s) just want to lead pursuers astray. In cryptos, it's the first case. The criminals get hold of those accounts by hacking or buying them and then do their deed. Why do you think old accounts are hacked or bought?
Now I see!
Airdrop isn't something to be fully trusted because they are sucking, I could remembered a friend who got piped up though airdrop and till then he promised never to involved with anything airdrop.
By "piped up" you meant scammed/wrecked? Anyway, the safest way to attend to airdrops is to dedicate a burner wallet for them. No one should use their main wallet for airdrops or any other social media tasks to avoid getting their funds wiped out if it goes awry because of malware or hacks. Anything can happen. Be guarded.