I don't know if there's a West Side Story feud between sites, so don't bite my head off if this seems ridiculous, and this is just from me- I'm no admin, I don't really know any.
Here goes: FBTB.com could reach out to classic-space.com, which is a staple in the space community that might want a little backup since they're post-hack. Could talk to their admins about a joint contest, a featurette, or a host for their old Concept Art gallery. Something like that :]
When FBTB embraced Flickr and started the outpost there, it was beneficial for everyone because new fans found the site. This could lead to more traffic both ways, strengthening the community.
Just a thought not expecting results, of course.
I also think if News items were posted in the Coffee Shop thread, it'd open up conversation. It could sway from a lego focus, stuff like the giant LULS Vader and the Video Game platform would draw discussion and conversation there, moreso than the comments section of the actual post. Of course, things like featured MOC's or Deals could stay in their own sections, haha.
Thanks for reading!