The "comical campaign" as you put it, is very much because KS campaigns tend to have at least a fraction of backers who are very emotionally attached to the product. I've seen articles trying to promote PoE only to have enraged fans flip out on any comment that is even slightly derogatory to PoE or Obsidian.
PoE actually doesn't have that bad of a community. I've seen official forums of some other KS games where people would receive death threats for posting a suggestion.
TLDR version: gaming communities tend to be toxic and you should probably engage in them lightly.