[asjo]

Some blogs have a regular feed and a comment feed - I haven't really tried to use the latter, as comments in many places unfortunately is even more spammy than usenet.

It would be fun if you could post comments to the original blogs through Feedbase, alas, that would probably means custom integration for each and every one, and would be prone to abuse. So comments (follow ups) on Feedbase are local to Feedbase (and not used much).