We all know that report spam function? Well, I found a little bug with it.
I'm not sure if it really affects anything but your chat log, but here it goes.
Find an annoying spammer, then click on his name, and select the report spam function.
Now do it again.
And again.
And as many times as you want.
I'm not sure if the server will count these extra complains, but either if it does or not, the "Commplaint registered" thing in Yellow text will come in your chat log.
Have fun!