I understand that games will grow with more platforms and the affiliate program... but I do think it would help to do something small right now.
It doesn't even have to be much - but it will encourage the guys sitting on the sidelines to sit and keep games going. Then when someone logs in and sees games already running they're a lot more likely to stay.
Even just making people aware of the table-starter rakeback/bonus would be a good start. I was unaware of it until now.
Maybe offer a similar bonus for OFC/p tables too, even though they're never 6-max.