Stella, there are "morons" as you call them, everywhere on the WWW, it's just a case of some people don't know how to handle others, you can't look at facial expressions whilst reading some posts, and lots of people have a computer or a way onto the web, but lack security knowledge on their machine they use.
Basically the same as people living in your own street... you have to try to work out the good guys from the bad and steer clear of those you don't want to bother with.
Even I have had to learn over the years, hence sometimes I travel to a gig on my own and mix with noone, or sometimes I travel with friends and meet more friends old or new. Hence sometimes I might sound a little abrupt in my postings from only wanting to protect some people, but I mean no halm.
Sometimes it's "our" own individual moods.