Older people of lemmy what is some nuance sayings or typed on the net that you would like to have explained to you?

Don't know exactly but something similar to a mixture of a brave, true, and cool statement. Think it was first used by right wing chuds but then adopted ironically by terminally online liberals.

You'd say "based" if you agree with the political messaging of something.

(Pls correct me if I'm wrong)

I've often seen "based" as a shorthand for "based in reality" or "true"

It's just signalling for members of the clique. Totally fetch.