You can't ... seem's some dope thought it was a great idea to add it and leave as is.
So if you feel like helping a bunch of people out in threads you are expected to do it one reply every ten mins. You would think after your account has like 20 posts or something that it would remove something like that as it would show it's a regular user and not a new spam account etc
It's really infuriating as you could have a thread open trying to resolve an issue you are having and it's delay to hell because of this restriction. It's a lazy way to stop thread/post spammers