Thank you for clarification. Indeed, my wrong impression based more on discussion in this topic here, than in your proposal.

I also had to sign up to the Mailing list. It was worth it. Some very insightful replies there. Reading the list in the gmail web interface, I do not get threading there either.

The only place for structured discussion remaining is the Wiki: If an issue comes up, a section gets created, discussion on this issue happens under that section, if it reaches a happy end, the issue can be marked resolved. The closest seems to be:

I even went so far, to create an issue myself from a mailing list post, that I deemed worth the effort. The Wiki allowed me to split a section/issue, where the poster changed topic midstream, something moderators can do here too.

I guess though, such is probably more about keeping track of discussion, documenting issues and solutions, accounting, so to say, than it is about sharing ideas. As the person behind the proposal, I consider that essential. It might even help others to read up on the subject matter.

So, IMO, the sentence Please discuss this proposal on its Wiki Talk page. should remain as is, and not specify alternative channels, which get used anyway. Instead, the proposal author shall be recommended to collect the bits there.