Be careful what you wish for...

One of the brand pillars of the new 2012 Olympic Logo is participation. People have been participating on the Olympic blog, but not all participation is equally welcome. This is a comment by the "London 2012 team" :

Update: We have received many comments that reflect the tenor of negative comments found elsewhere on the web and often containing offensive language that, for obvious reasons, we cannot publish. Rather than act as an echo chamber we have published a selection here that say something a little different

Most people would say a blogger is under no obligation to publish abusive, offensive posts but negative comments when you have invited participation are a different matter. Is this the right decision? We have a few negative comments up here, but I'm not sure how I'd feel about a flood of them. I might, after a point, call the conversation to an end as the Olympic blog has done, but I'm not sure. Your thoughts?