It looks sort of hidden medicine and many users don't know it and the efficacy of that therapy is not good.
Months ago, I saw a proposal that developers should be charged a fees to create ANN threads or bounty threads on the forum; or force them to pay for participants in Bitcoin only, but it did not catch attention of theymos; or he does not have intention to make more restrictions on newbies, new projects. The forum is opened for all, but bad guys will be punished when break rules and detected.
Similar proposals were made years ago by other people, including me. Now it's probably too late to make a business out of charging altcoiners for dedicated altcoin boards as other venues (telegram, slack, discord, twitter, reddit, dedicated forums) are more popular, but it's not like the forum suffers from a lack of funding.
Newbies already have their accounts heavily restricted compared to the past (the days of Newbie jail excepted). I just 'randomly' picked 3 topics in two altcoin sections (announcements and the one for general discussions), on the most recent pages of these topics most users posting weren't Newbies, they don't seem that much of a problem.