Could you even consider Sammy a lolcow? I mean the dude was like 15 when he made those videos, I get that was still a little too old to be acting that childish and immature but still, we all do stupid stuff as minors.
I don't know about the rest of the Farms, though I get the feeling a lot of people agree - under 18s get a pass for a great deal of tardation because they were kids, and kids are morons. And worse, morons who think they're not. So kids aren't usually considered lolcows as much as just ... kids.
Doesn't stop some of them from staying lolcows into adulthood, but maturing out of previous stupid behaviour is what happens to most kids - and what many if not most of our lolcows are unable to do.
For me the only way you can consider a lolcow as have won is if they completely ghost the people who laugh at them for an extended period of time. There's probably tons of people like that but I can't name any off the top of my head
Not being remembered is about as good as you're going to get for a lot of lolcows. 'Winning' is hard to quantify, and getting off the KF radar doesn't count, but it's a start. There's many lolcows who are still doing the same old thing, but they got boring so their threads stagnated, rather than because they improved.
I guess I think of winning as a lolcow legitimately being able to say 'I sure showed them!' about us, in which case the closest any of them has come is probably Vordrak getting the Farms down for about a month. There may be others I'm not thinking of -
@Jaimas is the true cow historian - but my thinking is that our continued existence prevents cows from winning.
Self-improvement out of cowdom is a victory, but not against us so much as against themselves.