Poco Net Digest vs. Google? Who's Calling the Shots! - Internet Information - DemoSeo.com

When adding a bookmark to Poco, I unexpectedly found that the keyword "Google Webmaster" is restricted on Poco. It showed an error saying there were illegal characters, and thus the addition failed. Is there any past conflict between Poco and Google? I'm not sure how to analyze this from an SEO perspective, so I hope someone with more expertise can provide some guidance!