was watching youtube videos on r/cring and apparently Princess Celestia is a molester? what does this mean?
It's a joke that a couple of fans made up. Since "Molest" rhymes with "Celeste" they made the joke of turning "Celestia" into "Molestia". Since then, it's made tons of fanfics, fanart, and fan videos.
It's really dumb.
It means that this meme is stupid.