If and until Q authenticates another source for direct messaging, we only have a CM-authorized platform on which to do so.
If they're able to recreate the same hashing method (should just be a key to copy, but maybe not compat with new system), Q can go right back.
Otherwise, needs to be some kind of pre-association with one or several Q+ posts to validate.

It's a lot easier following a path when you know it will pan out. Q posts provide that, and will attract the best research there, as well.

How do you manage to provide redundancy in keeping those posts alive, and still maintain 100% confidence? I think it's gotta be the same platform, but with a mirroring capability, or some central authority source needs to be created that can trustworthily span boards.