Dave Convery (10/13/2015)
Currently there are filters based on post numbers, with automatic approval for people over a certain number of posts. This is a bit more robust than just the age of the account, as spammers will often sign up to sites and leave an account dormant for a long time (possibly to sell on) before suddenly starting to post spam.
Just looking at the most recent occurrence:
Joined:Yesterday @ 5:17:50 PM (14 visits since)
Last Login:Today @ 2:14:51 AM
Total Points:8 point out of 1,698,930 total points. (% of total)
All 8 posts are new (i.e. no posts on existing threads, or I am not seeing any other such posts [might have been deleted already?] and they are not included in the "8 points" total) all are SPAM and posted at various times since registering.
Not sure how that tallies with "filters based on post numbers, with automatic approval for people over a certain number of posts" - perhaps there is something not quite tight enough in the filters?
It does seem to me that they favour "Data corruption" forum ... not sure what to infer from that though 😀