It's MADNESS!!
It only gets to me in the tech side of the forums when I'm trying to research a problem with a device or have some question about software. Then I get annoyed at whatever starts looking to me like troll posts no one including me bothers to report. I'll report a clear spam post if I happen to see a fresh one but that's about it over there.
I keep a curse jar for donations to charity and usually the iPhone threads are good for my local food pantry, what can I say. It's embarrassing --and freaking expensive-- to hear what I sometimes say out loud to an empty room while reading an iPhone thread.
In PRSI the nuttiness is either fun or I just skip a thread if I'm not up for trying to debate whatever is the topic. I sometimes put people on ignore but that does tend to mess up the sense of a thread unless I read it as a guest.. but then I see the ignore posts and then I see red on one of them and take the person off ignore to respond, so... heh... trying to grow up is so hard when you're in your old age.
In other Community forums I tend to ignore most of the threads unless I'm procrastinating in real life and at that point will read even a cereal box so a Community thread is always an option too.
I do end up with notifications of deleted posts after I willingly follow almost any ol' Pied Piper down the road of off-topic posting... trying to pay more attention to the thread title might help me, but... not always .