Mostly just new users copy-pasting comments to earn steem. Nothing unusual but incredibly frustrating.

Yeah, unfortunately, this isn't particularly surprising, that's what makes it so depressing. This kind of behavior is often considered to be "normal". I'd like to think the person who did this was just ignorant, and with a little education will never commit the same atrocity. But given their actions, I think this is just a person who has hate in their heart.