There has been some minor discussion on this feature.
Meaning it is not truly a complete ignore just as you state.
But I don't believe it will even be considered at this point in time until version 7.6 gets out the door.
Personally I like the way it works now except for the fact it is not a global ignore.
You still see them in the whos online and I believe they can still send you a private message as I recall.
