I mean, the point of the question was what the purpose is. Your answer was more about what it’s used for… You know what I mean, right?

Like, sure… It’s used

For spam, for hate, for racism, for off-topic-stuff, for advertisement, for trolls, for “bad” bots, for people who ignore facts, …

But it’s made for agreeing or disagreeing with something, liking or disliking something, etc.