The lolcows I tend to follow are typically horrorcows in some capacity or another, because I'm a moralfag by nature and I no longer find autistics or trannies who are just wildly eccentric or have views I don't believe in as amusing as I did over a decade ago. I prefer ridiculing people who I feel actually deserve it these days due to how harmful they are towards other people (or animals), as opposed to people who are just weird but mostly only a danger to themselves or the morons who raised them that way, of which they are dime a dozen.
Also, self-reflection is a big part of it. Nothing makes you analyze your own life choices more than watching someone else make all the wrong ones on purpose, and I think observing lolcows who have similar issues to your own can definitely put things into perspective. My life is far from perfect but goddamn if it couldn't be a hell of a lot worse if I lacked the capacity for foresight and self-awareness that some of the lolcows documented here do.