If you mass edit, it’ll get restored from older versions - pointless really.
Find your top 20-30 posts and comments and manually edit them. Make them sound real, but at the same time contain complete bullshit. Anyone, or any thing reading them will be misinformed- not by you but by reddit thus making reddit less valuable.
To really be a thorn in reddits side we need to be actively, but subtly malicious.
+1, it’s hot garbage and I don’t know why anyone would use it. You’re better off trying to randomly guess the URL of the content your looking for because that’s probably more likely to find it.