What was the rationale behind this recently added section? It's still giving the content a public forum which is what their posters wanted in the first place, and IMO invites more such activity.
I think at least there is a problem with how this 'new' rubbish bin is being used/implemented.
The content of the posts—including all commercial weblinks—are indeed still there to see for anyone. (and clickable)
So they remain active spamposts, they only have been moved to a different board.
And they still all show up when you e.g. click 'View the most recent posts…'.
(until the sole admin deleted them himself)
In my opinion posts that are without a doubt spamposts should be deleted immediately by one of the mods.
I know they are not currently able to do that (due to one (2?) mishap(s) in the past), but perhaps that should be reconsidered.
Then there could be a rubbish bin as there was in the past.
It was where posts from humanoids that were completely useless, stupid or containing false information used to go.
Some may not support that idea, but I think it is much better than:
A. Leaving such useless posts spoiling the original topics for eternity.
B. Applying hard censorship by completely deleting them. (not a fan of censorship)
And then that rubbish bin could serve as some enjoyment and/or education on how not to behave.