Yes, I have noticed abnormally high occurences of my opponents "flashing live", sometimes continuously for days. One opponent who was indicated as "live" for about 70 hours, ran the time control down to minutes before moving.... this seemed strange to me, especially as he is not a premium member and usually moves quickly when connected.
I notice the display often shows that I'm in LIVE chess when in fact I logged out days ago, both from live and indeed from chess.com site. I also notice several friends are indicated as being LIVE when in fact that they are not. Is this a glitch, anyone else noticed it?