"

 AIV Reporting Bug 

Yeah, I just noticed that too.  I am using Vandal Proof and it just does that.  I am also annoyed that Vandal Proof does not include an edit summary when reporting users on AIV.  I just made a request on the request page for the addition of an edit summary.  Now, I will report a bug with this weird % thing.  My apologies, I hope it gets fixed soon.  Cheers! e2221 "