"Haters are going to hate." -- by using that phrase you make it sound like people are criticizing WordPress without cause. I haven't looked into it recently,

"Haters are going to hate." -- by using that phrase you make it sound like people are criticizing WordPress without cause. I haven't looked into it recently, but as I remember it, in the last 13 years there have been abundant legitimate reasons to criticize WordPress (many in the categories you listed). Yes, some people will hate on something just because they don't like it (regardless of any merit it may have). But I wouldn't lump in all of the people with legit criticisms of WordPress into the same group as "haters".