This trope is called "Straw Fan", but most of the examples seem to be sympathetic towards the creator. Kind of a mixed message there.
A Straw Man is a fake version of your "opponent" that you create to mock. Of course the creator is going to be sympathetic towards himself/herself.
I meant that on the part of whichever tropers wrote those entries. Like the people who wrote them are more sympathetic towards the authors than they should be, given the blatant strawmanning.
The entries don't look that author-sympathetic to me (they're mostly neutral from where I'm sitting, and a few seem mildly irritated or sarcastic), but a few possible reasons: (1) Denial; no one wants to think that they are the ones actually being targeted. (2) Self-deprecation; most people who contribute to that page are fans themselves, and consequently know how bad fans can be to deal with / can appreciate the dig, straw or not, if it's done well enough, so they're willing to cut their favourite author some slack. (3) Maturity; a page that was nothing but whining, complaining and screaming about how our poor feelings were so hurt would just make us look like immature and petty crybabies who can't take a joke (and would also help to prove the author's point about how childish we were), so we moderate our responses. (4) Practicality; said page filled with nothing but whining also wouldn't be incredibly entertaining or enjoyable to read. (5) Rules; overt complaining would most likely go against the site's general 'no natter on the main pages' rules.