Here you can find some plug-ins that have been made by people other then plague-the-net.
[[Download]] This is a Dante inspired command that annoys the hell out of everyone. It makes the letters of a sentence obnoxiously big. PLEASE: do not spam with it.
[[Download]] This is actually 3 separate commands in one. The first is 'reverse' which reverses the input string. The second is 'fnord', which generates random, funny sentences. The third is 'insult' which insults a user with one of Netflix's top 100 movie insults.