I've definitely gotten side tracked on the issues and played too much phone tag with the service center to get any good explanation. But as you've pointed out before in the thread, there's several issues which everyone calls audio delay.
1. The one you pointed out which is that the output audio signal lags the input signal, even with Pure/Direct mode. This is the issue that would affect gamer but it is confusing that even in what is supposed to be a pass-through mode, there would be ANY delay. Bad for gaming but not necessarily an issue for watching broadcasts or DVD's.
2. Lip-Sync delay watching network HD broadcasts. Whether it's via Cable, Antenna or Satelite, this seems to be a pervasive problem with the way several of the networks create their HD feeds. This is often WAY more then the 50ms or so discussed for #1. Nothing Onkyo can really do here except to introduce a video delay setting which would be nice..
3. Lip-Sync delay watching DVD/Blu-ray. Reading the thread, some folks have noticed this but it sounds less certain. Correct me if I'm wrong but I don't think this one's been established as an error, although it does seem as though this is the issue most folks are concerned with (that Onkyo actually COULD fix).
I haven't said anything which wasn't previously brought up but it can become difficult to follow these threads. We almost need a wiki.