Those scams are not isolated to Bitcoin. You see them in many content creator industries. They are giveaway scams and templated to fit a niche. You can do them for gambling, gaming like cs-go skin giveaways, makeup giveaways and so on. They are really easy scams to do because you can just wait for the next trendy thing to happen and then target that trend with bot accounts. On youtube they will often just recycle what accounts don't get reported.

Platforms do their best to take care of this, but these scams are so easy to run that you can automate them and spin up new accounts very quickly. Even if there are financial barriers it can still be madly profitable to accept the costs.

There is no clear way to deal with the concerns you mentioned, but I think playing too safe and not exploring technology will quickly put you behind the curb. Most of it can be resolved with good financial regulation.