While I somewhat agree, you do obviously have the option to report them to the WGT moderators and let them handle it. Allowing everyone to post people who they view as bad sports, rude, etc. would lead to a huge he said she said page where no one can really determine who was the person at fault.
I believe that you can take a screen shot of the comments and / or actions in question and send them to WGT and they will handle it.