It's up to DT1 to clean DT. In wolwoo's case, that works just fine:
wolwoo (
Trust: +2 / =1 / -3) (
DT1 (-8) 413 Merit earned) (
Trust list) (
BPIP).
Merit sources are up to theymos, and as far as I know his application has not been accepted. I can't really judge his Merit sending judgement because I can't read most of the posts, but if his judgement on Trust is a indicator for this, it's not good.
Since scams aren't moderated, I don't think promoting a scam is necessarily a reason to reject a Merit source application. Clear judgement is what's needed though, and anger tantrums aren't a good sign.