There’s nothing wrong with asking questions as an Anon, but if you ask a question anonymously and then also say that you’re looking to promote yourself…
But honestly, I like it when people come off Anon, because I like actually engaging with people. It’s more interesting to be able to put a little more personality behind the names/pics of people I see liking my stuff. It’s a little less like shouting into the void that way. I’d like to think I’d be as fair answering question on anon as I would be off, but I can also see how my sarcastic and caustic demeanor would have people thinking otherwise.