When I first came on this forum I was a little surprised with some of the posts to folks questions. I agree with the OP there are several members that only want to "slam" others and they really do not contribute much else.
I was about to delete the entire site from my favorites and never return after a couple of them started on me. Then I realized that they were just grouchy old dudes that didn't have anything better to do and I started to kind of feel sorry for them.
To give myself a break from having to read some of their******I simply blocked them for awhile. Try that before you decide to leave the forum for good. It seems like some of these old grouches get their medication adjusted or something and pretty soon you can unblock them and find out they have calmed down again. Then when they start acting up and being rude, simply put them back in your blocked list again.
Some of them probably don't realize it, but when they post there could be 90% of the members already have them blocked so hardly no one is reading their rants anyway.