I'd have written that creationism jumped the shark when its adherents started to post Wahabbi Muslim drivel, but creationism actually jumped the shark about 120 years ago.
There are serious creationists who are dishonest, and there are honest creationists who aren't serious. But there are no serious, honest creationists, and there haven't been in over a hundred years.
... and insulting the dishonest won't help you, either.