..just so ya know... you're not imagining anything! I played Blitz for a couple of weeks w/ no problem; then a few days ago I too, also see "0 users" when I go there now.
Also, shouldn't I be able to "offer" a game whether there are other users or not??
... I'm sure it must be broken or getting an upgrade... (*shrugs*) ... lottsa fun!!
Meanwhile, you can try this site... there are some good blitz players there:
..unfortunately, I'm having some kind of "Java issue" there... even though I've upgraded to the latest and greatest, it's still a "no go" for me... but a friend has no problems whatsoever, .... go figure, eh??