User blog comment:Meighan/Wiki Wisdom: Reacting to Trolls and Vandalism/@comment-168424-20111111222939

Not a big fan of:
 * Save yourself the trouble. Don't bother with "Why are you doing this?" messages.

Sometimes ignorance can be mistakenly interpreted as vandalism. Sometimes someone who seems like a spammer may just be incredibly eager, but otherwise lazy about learning the ways of your wiki.