Give me reason first to why switch to other bitcoin forum.
[1] Does it pays good?
Well it pays but not like bitcointalk signature campaigns.
[2] Are there users online?
Not much like bitcointalk and most of them spams too much as all of them are newbies and in order to get paid they either starts up new threads or posts one liner off-topic posts.
Moreover i think you should set up different rates for different ranks of your forum members.
Also i think maybe lowering the ranks activity may grab up some attention.
I saw the same promotion in a deferent style yesterday. "MiningPool" was posted that thread. and same weeks before I saw the same promotion by someone else. I am wondering why so many peoples promoting the same site. are they getting paid from admin to promote the site in this forum? they should run a signature campaign for promotion.
it is better than doing spamming in the service section.
Well its no use until or unless they come up with great idea to grab up attention of bitcointalk users.