Question about friend visits during this event

Noticed the same thing. I assume it's just some sort of glitch where they're not actually accessing the right information to keep the numbers updated. Doesn't really affect game play any, so I'd rather they focus on any other glitches that are found (unless, of course, someone finds a good glitch - that they should leave alone :P )

Edit: I had several neighbours with no casino and had no trouble tapping gamblers in their towns.