This counts as "posts" and not "comments" there is a big difference.
Threads ands posts are part of the WBB application and not part of the WCF framework.
The thing Marcel has implemented for WL Blog 2.1 is that the Blog Entries have a new "permission" max alloed edited time as you suggested.
But this does NOT count for comments to it.
Which means I only got 1/2 of what I needed.... * sigh *
I need the future... yesterday