This sprouted forth based on a discussion on IRC.
It would be *really* nice to have a clear, definitive list of what users can and can't do with openID accounts on LiveJournal.
A screened answer and a regreened approved answer in this Support request spell out a bunch of things: [http://www.livejournal.com/support/see_request.bml?id=743637].
Not having had the time to personally test each item, I don't know whether the screened bit is completely accurate, or whether it would be good to give more info on each, or what.
Ideas floating around on IRC were to add more clarification to FAQ 231, and/or to create a [side-by-side comparison] chart [with basic/plus/paid/etc accounts] a la FAQ 38 and the Features by Account Type.
And yes, it would be nice to have it in the wiki eventually.