Play Places here are actually pretty nice, depending on the location. My point about the topless woman is that legally there would be no difference between the guy talking to a topless man and a topless woman. Neither would (or should) be considered pornography in this instance. If there were other things being shown on the screen, then yeah, but the manager didn't witness anything inappropriate, which leads me to believe that the woman was having a hissy fit and making up details to make her story get more attention than it deserved.
True. In public spaces anyway. There's a nude beach somewhere here...
But McDonald's and other private establishments can and should enforce house rules. You're there at a restaurant to eat and chat, not be disruptive to other patrons. Same thing applies if this guy were to cyber chat in a library.
Now that you mention it, the modern day Play Places are quite lame, if a particular location still has a Play Place.