Just chimming in to agree that it doesn't mean they know the rules. When I first started out, all artists I knew were using the gift option, because artists they knew were using it. So when newbies asked for help, that's what they were instructed to do. It's only later I found out, from AB, that it's against the rules and why.

Commissioners are the same. Most commissioners will send things as a gift if you don't tell them not to because that's what they think they're supposed to do. So a good amount of people don't actually know about this stuff.