I have mixed feelings about Maia. It's great that she was willing to help so many beginning writers, including me (when I first started posting well over a year ago.) Was she helpful? Yes, she did help me a lot. However, the person I learned the most about screenwriting from was the director who gave me my first work for hire assignment. Maia is excellent for absolute novices, but after you have a few lessons from her it is time for the beginner to move on to professionals.
Maia claims to be an expert of sorts, but it is obvious she is not the all knowing expert she claims. I've seen no evidence that she has ever sold a screenplay, or any other type of writing. Apparently she has claimed to have done porn writing.
The issue with that is that many very knowledgable posters here on this forum (in the novel writing section for example) post under their real names (Victoria Strauss and James MacDonald come to mind). We can look them up and find out what books they've sold, etc. The owner of this site, Jenna, has written a lot of books and screenplays and we know what her background is.
If one is claiming expert status, one should have the credentials, right? Maia, who refused to post under her real name, demanded the names and credits of anyone she had a disagreement with over the technical areas of screenwriting. Yet she would or could say nothing when people asked for her credits. In fact, is someone who works as a maid of sorts in exchange for a place to stay the best authority on screenwriting/film/publishing? That was my bone with her. She apparently wasn't successful, yet she claims to know all about the business.