Laughing at eccentricity or stupidity isn't necessarily evil per se, though I have no delusions of moral superiority when it comes to Kiwi Farms.
A lot of us here are shitty people, and I'm including myself in this, but most of the people who have threads here are often just as shitty or are exponentially worse.
Some people featured here are pathetic people who never had a chance in life despite their moral failings, Chris is the most notable example of such a person. So, while I may mock Chris for his idiotic behavior, sometimes I'll admit I feel bad about it, and in Chris's particular case, the hardcore weens (Bluespike, Idea Guy, etc.) and haters (Anthony Logatto, Michael Hirtes, ADF, etc.) are people I do not have any respect for.
Some of the more benign lolcows I actually sort of pity and feel bad for, such as Pixyteri or Sailormoonred1.
I feel even worse for innocent people who have been caught up in lolcow drama (Megan Schroeder, Mike Snyder, Mary Lee Walsh, Angelo DeLici, Doopie, etc.) because they get their names dragged through the muck and often attract unwarranted attention from weens just because they were around the wrong person at the wrong time.
But there are other people on here who are truly disgusting excuses for human beings. People like ADF, Nick Bate, Jay Geis, Brianna Wu, the Incels, the Rat King, Alt-Furry, Antifa, Atomwaffen Division, and any lolcow who has been outed as a pedophile. Those people I have no qualms expressing mockery or disdain for.
To be honest, I don't see myself as a good person and the fact that I'm on Kiwi Farms pretty much confirms this.
Being on Kiwi Farms, I've learned that I'm a morally ambiguous person at best (and a terrible person at worst), this forum is full of morally ambiguous people, and a lot of the people who we have threads on are often somehow worse people than we are (though not always).
Just my two cents on the matter.