1. I love that term, It emphasises what is wrong with this forum, all threads are at a risk of becoming SPMT´s.
But this merit system is supposed to stop or at least make posting in those sorts of threads worthless. People only used to post in the 'spam megathreads' because they could easily rank up by doing so. Now posting in them is pretty much futile because it will get them nowhere without merit and nobody is going to give merit out to the half-assed one liners that get posted in them.
2. What would be the solution to all SPMT´s? Is that not locking them, or deleting them? Thus deleting the post history and every activity and merit earned by that SPMT´s.
Some do get locked or trashed but you would need several full time members of staff just to police the shit threads alone. Hopefully they will gradually decrease once people learn about the merit system which will force them to only make worthwhile contributions.