Another forum I frequent, not cars, has a live chat feature at the bottom of every page, regardless of subject or category. Didn't this forum have that at one time?
Also, a good number of the old non-SVX subject rabble rousers are still here. Just make them feel welcome again.
I think it draws members to check in when they don't have any SVX issues to deal with and, maybe participate and interact, within reason. It appears a loss of sense of humor has occurred.
Gene