A point here:
any proposal that is an actual proposal, rather than a idea that needs fleshing out, can benefit from being written down in a single document.
It does NOT have to be an official PEP in order for that to happen. If you are advocating something, then write it down, post it gitHbu or some such, and point people to it -- that's it.
Using this list alone (or any forum-like system) is not a good way to work out the details of the proposal -- if you have a written out version, then folks can debate what's actually in the proposal, and not the various already discussed and rejected idea that float around in multiple discussion threads...
-CHB