I've contacted a couple of people here on Rootschat through the SIT and have had no replies.
It seems that lots of people join RootsChat, enter their names in the SIT, look around a bit, maybe even make a couple of postings . . . and then disappear.
This is probably true of other forums as well. Probably all the hype from WDYTYA and similar programs has encouraged people to "join" all sorts of forums, groups, clubs, societies, etc, but only a few of them then continue, the rest fall by the wayside, or "join" the latest 'in' thing or craze
(knitting chocolate fire guards, maybe

)
... which means that there is information there, in the SIT, on GR, etc, but the posters don't respond to messages.
... or, to give them the benefit of the doubt:
unlike us addicts, some of them only look in sporadically at forums, etc, so they may reply later.
But to people who are looking every day, that is totally frustrating !!
And that the world is divided into Givers and Takers .. well, we all know that.

Every group has it's share of GIVERS, TAKERS, and SHARERS, and fortunately, there seem to more SHARERS on RootsChat than on many other forums

Bob