Yesterday i just heard about these "Vandals", I may be new, but I HAVE been spammed on other ocassions, not Wikis though, I'm new to wikis. so now i have posted a message to ward off vandals from my page,Ernie the Boomerang Bird. Maybe You should too! Protect your pages and blogs! STAND UP! Dont let vandals ruin you page, Post a Message Like " DONT VANDALIZE THIS BLOG i will report you to A Admin." It worked for me!