Maybe use http://friendfeed.com/ Aggregate all you activity - flickr, youtube, blog etc. and ask you friends to comment there. They'll keep all your entries, not only the onces currently in the RSS feed.
Yup, I use Friendfeed. Funny, I was about to see if I could somehow add the YC RSS Feed to FriendFeed with the ability to display comments within but it's just not there yet. Soon, I bet :)