I think it is great that a low ranking users has jumped on their case and keeps posting there to point out to people that coinsbit are scammers and as you rightly pointed out it is great that the thread is not even bumped to the first page of the listings, it seems to float between the second and third pages usually. that is why I do not post in that thread and hope other members with any form of mid-to-high ranking refrain from posting there too because we do not want to give them any form of opportunity to get to the top of the listings page.
I prefer to make an occasional copy/paste of a post by bitbottrader from the coinsbit ANN thread and repost in coinsbit scam threads but will avoid in their ANN thread until/unless necessary.
But its a good idea to use a low ranking account to remind people about their scam accusations so that way they don't bump the thread.