Didn't mention anything about groups. Not sure what you're talking about with that one.
That's very unfortunate. Didn't mention any bugs, wasn't being aggressive, and I wasn't insinuating. However, I clearly made an assumption as I asked why developers keep removing things "like these." Not sure why you're getting all offensive. I've seen many developers purposefully remove the MMS conversion and I didn't see anyone claiming it was a bug so I went with my first instinct. The screen blacking-out (for lack of a better term) instantly when placing a call is beyond me as, with my experience, it seems to be due to certain modules, apps, processes, or what have you. Could be a hardware issue like stated earlier, could be a bug as suggested, could be anything as it's out of my reach. I for sure am unable to silence the notifications though. I really have no clue why that would be. It has been this way since 1.4. Tried clean installs, dirty flashes, DF's with little wipes, etc.. nothing gives. It's either Vibrate or Ring. So... simmer down now.
EDIT: Also, things I was implying about dev's removing also included the likes of apps and widgets (i.e. Voice Recorder, or the Resource Monitor widget).