Now we have a problem with Newbie -great project- spammers and only options are is to report them to the moderator. Then mods going to delete those post but that has already happened. This is a suggestion how to prevent spam emerging.
With limiting the number of posts which Newbie(i think Jr.members need to be in this group) can post daily, it is necessary to get approval for each post before publishing. So it can't be published any post without approving from forum moderators. Yes there can be a problem it is a lot of job for forum admins and mods, but this can be facilitated if more members are included in the moderation.
How does it look? By default, moderators, admins and DT members can approve or deny publishing new posts from Newbie and Jr.members plus there is need to add for example +100 other verified members which can vote/approve post to be published.
So, all of the new posts must have 5 votes to be approved or 2/3 of quotas set. In this way, the ability to manipulate multi-accounters would be reduced. Multi accounts owner if they pass verification can't manipulate to publish their alternative accounts posts.
Allowed posts going to be published, denied going to trash. Accounts with 30 posts and 90% denied posts going to be banned(numbers and percents is just for example)
Verified spam-catcher members would be interested in moderate and vote for post-approval, maybe they can get some benefit here. Something like merit but can be named Karma points. this points can be used as a multiplier which can help them to improve his forum rank. Also, they have a limit how much votes can do it daily, then he can't improving rank only in that way. Verified users need to have 80% accuracy rate of his votes or will be removed from this list.
This would make it much more difficult for airdrops, ANN bumps, Bounty account farmers and I think from there comes the most of this shitty posts
I read your recommendations and while I must commend the thought put into it, its going to be more difficult to implement than the way we are seeing it. The forum is a large platform with several complex issues to add this to it would mean more complexities. We have Mods but they are not machines, we have DT members but they are also human, we equally have high ranking members too but they are not infallible to mistakes.
What I am trying to say is the problem won't just go away like that but a gradual push by move us closer to what we want. The merit system is still the best thing to happen and if we can plug all of those people exploiting this policy, I am sure the community will be better of which it has been doing since the commencement of this era.