' Sage is never used as an expression of disapproval or an "insult" on Japanese imageboards, where it originates from. This faux usage only occurs on western imageboards. The original purpose of sage is to not bump a thread if one deems their own post to be of little value.'
Questionable, and no sourcing. It's not true either, there are enough sources which demonstrate that saging can be used for disapproval. However as I do not post this claim up I do not need to source it, but the person who posted the associated contradictory claim needs to post up a source. I'll remove it for now till someone can provide an actual source beyond personal information.