I'm not sure we are getting lots more screaming people, but some posts do stick out a bit for sure! If people don't like us then surely best that they spend their time at places they enjoy... or of course constructively help shape what we do here.
I must be blind or something but I have not noticed many angry or screaming postings. As anyone can write what they want you are bound to get a few people who abuse the system, but is it serious? Perhaps you are refering to postings that have been removed before we see them.