And here I thought that Fediverse was serious about being an alternative to heavily censored platforms. Now I see it's just a joke.

I liked a joke about Black Mirror being repetitive and unoriginal. I love Black Mirror.

Negative karma doesn't necessarily indicate a troll, any unpopular opinion can get down-voted to hell while similar but differently expressed ideas get up-voted in the same thread. I'm not against karma system though, just think it's quite useless in most cases.