Everything he does is to sell shirts/merch, thats what it all boils down to. All of his posts on any website are posted for attention, its the internet version of a dancing statue of liberty spinning a sign on the corner.
In this case with the stalker shit, hes trying to look like hes making big official moves with the fronting about the "movie", book, songs, shirts... By doing this, he gains the interest of fake model chicks who are so burnt out they take a gamble and sign up for stalker team hoping that something he does will actually turn out well and open up doors for them... By doing this, he gets a mandatory shirt purchase from each member, and a team that will gain attention and ultimately gain, guess what, more shirt sales.
And the reason he dosent care about the quality of his trailer is because he needs just enough quality for those stupid bitches to not talk themselves out of lying to themselves.