I've only read the first page of this thread but I can very much relate to the OP's experience, because mine here were largely the same when it came to many suggestions for improvement that I posted. But to be honest, it's not the whole community that's problematic, just a very vocal and very present minority who have apparently made it their mission in life to closely guard the suggestions forum and shoot down any suggestions that they personally don't find suitable for their own use. Most of the time with the kind of inane arguments, incessant bickering and needless nitpicking that it just makes those of us who value our time not waste any more of it posting in the suggestions forum, since a few ever-present members have more or less taken it hostage for their own interests.
The unfortunate end result is that I've soon come to feel the same way about the XF suggestions forum as about the vB one back in the day: black hole. *shrugs*