It only took a couple of hours, and I got the achievements for both Anthony and Abigail, resulting in the achievement for dancing with all the gossips.

It looks like Keith added Abigail and Anthony as options for forum dance groups now! I have just joined a new forum dance floor that has both of them. Fingers crossed!

For some reason it kicks you out straight away, but then it should let you stay for two hours after re-joining. I'm not sure why those two NPCs weren't added to forum dance floors.

The main ballroom has been adjusted to flush users out after 2 hours, and I think the capacity has been increased. Since that's currently the only ballroom showing Abigail and Anthony, you may want to join it for the chance at those achievements. It should flush out at 2pm, if it works. I don't have the achievements yet, and I've been in there for 1.5 hours.

Well, it's just broken entirely. Unsurprising. LOL!