I just wanted to contribute, that I get messages/follows all the time on Twitter about wanting to order a "commission" from someone I never heard of before. As you stated, they usually have no art on their profile, or they use AI art without mentioning it. I've seen a few sneaky scammers try to make one art piece in MS paint and say that's their entire track record. If I'm going to get an art piece, I'll follow the artist for awhile and see how they handle their work loads. I know some artists who are legit but can't handle multiple commissions, making months or even years before you get it. It's just like everything else on the internet, you have to be thorough with investigating information; and be careful with your money. I'll admit I learnt my first lesson with counter strike scammers.