This^

[Zkuq]

Ka-pi96 said:

Zkuq said:
On platforms where there's no built-in functionality to voice agreement (e.g. upvote system), 'this' is a natural way to do that. When someone has already said something really well, it doesn't make much sense to repeat the same in slightly different words. 'This' is thus also a way to save people's time so they don't have to read the same thing again and again.

But by constantly reposting the original post as a quote isn't that still happening regardless?

Do you continue reading a quotation once you realize it's a post you've already read once? I don't. It doesn't save as much time as a built-in system but it does save some time.