Instant messaging via Facebook?
Looks to be a missing forum feature. Though can add facebook profile link against your account profile which would be even better.
Also, I'd suggest that a PM feature should be a part of the forums (I don't think I've ever seen a forum system without one), regardless of any Facebook integration.
"Always listen to experts. They'll tell you what can't be done, and why. Then do it."- Robert A. Heinlein, "Time Enough for Love."
Thank you for looking into it. PM is an important feature for sure.
Good news. wpforo support here says PM is coming soon:
I’m sorry but I don’t have an exact ETA, I only can say it’ll be available with 1.1.1 or 1.1.2 version within this month.