!nuke - to combat chat bots

Another bot, Fossabot, includes this feature where you can nuke all messages with a certain phrase from a certain length of time ago and for how long to time them out. The usage on it is !nuke phrase callbackLength timeoutLength (!nuke bad_phrase 1m 10m: so it mutes all messages in the last minute with “bad_phrase” in the message for 10 minutes). It’s the only bot I know of that does it, and I think it would be a useful tool for Phantombot.