Board Thread:Support Requests - Getting Technical/@comment-36968820-20180923172648

I was trying to sign Glitter Breeze's guestbook here, but was stopped by the message: This action has been automatically identified as harmful, and therefore disallowed. If you believe your edit was constructive, please inform an administrator of what you were trying to do. A brief description of the abuse rule which your action matched is: vandalism

Why did this happen? 