Ive seen people make a fuss over someone that was supposedly two inches over stocked. And if its a newbie, no matter what they post (is my platy preg, my new betta, what kind of plants grow in low light et cet) they are borderline harassed for their water parameters even tho it had nothing to do with the post.
Of course when someone posts about behavior or health problems absolutely. But its almost creepy how over the top some fish activists can be.
Also, when someone is asking for help with an outbreak in a tank i often see replies guiding the poster to buy more of the shoaling fish that they dont have enough of. Hellooooo the tank is sick. And if their fish were fine together for months or years leave it alone!
It also irks me when you write out the details and someone doesnt even bother reading it all the way and starts spewing generic beginner lessons.