I'm beginning to resign myself to these changes, much as I hate them. I think it's deliberate.
As a support forum (ie free support), which is obviously what Adobe wants and needs, this must now work close to optimally. As a discussion club for us oldtimers, it's getting more and more useless - but there's nothing in that for Adobe. They don't need us, and would probably be just as happy to see us go.
The final nail in the coffin was the disappearance of latest poster. Apparently an insignificant detail, but that is in fact the one single thing that most effectively discourages a "discussion club". Focus is now 100% on "what", not "who".
For photography/Photoshop/Lightroom discussion, I can recommend Luminous Landscape, and there are also others I haven't looked closely at, like photo.net.