Please do, or just summarize for us. Having not thought much about it, delegation seems like a good thing. The only issue I see (because I haven't looked deeply) is that clients that don't support it will generally not fetch those delegated notes, or if they do they will misattribute them (but usually harmlessly to a key that isn't used otherwise).

What is your issue with it? I'm open minded (have no strong opinion here) and could be convinced to remove it from gossip (or downgrade it to a compile feature that is off by default)