Why post this crap here??
First, because heavy metal fans tend to be the same demographic as Trump supporters. Thus if someone in that genre is going full TDS he is going to lose fans, which provides a good insight into the short-sightedness of these people.
Second, because there are many metal fans on FR and this is one way of disseminating the extent to which some people in the genre are losing their minds.
Third, there are lots of people who remember Dokken and George, and will be less inclined to buy their back catalog with this intel.
Fourth, it is topical and relevant but not THAT topical this why it's in General/Chat.
Fifth, because we all have freewill and if someone thinks it's crap they will probably skip the post.
It's posted in Chat where it belongs. If you don't like it, don't participate in the thread. This isn't rocket science.