Can Under the Radar Posts have Security Issues?

Dear Google,
This is only a test and example of an issue discovered while monitoring SideWiki Comments.
If a MalFormed URL is typed a sidewiki comment can be made on the side of the page.
Many custom 404 pages will need to have special monitoring due to the number of possible malformed pages.

This could be endless.

Suggestion would be to disallow Error Pages from comments.

Just my suggestion:
To read more about my testings you can visit my forums at :
http://www.xtremecomputer.com/forum/topic.asp?TOPIC_ID=256

Sincerely,
Murray
XtremeComputer.Com
Electronics Technician
Developer and Programmer

in reference to: http://www.google.com/test/one/two/three/ (view on Google Sidewiki)