why is zynka poker such a joke?

Because you're playing with fake chips...since you get free ones every day, there are scads of donks who shove all-in at the drop of a hat. That's not to say there isn't some serious play...about all I play are the weekly tournaments and the shootouts. In the former, there's a little more serious play since once you're out, you're out for the week (unless you pay actual money to buy back in.) In the latter, the round-one games are still full of all-in donks, but once you get to round 2 or 3, the play is more serious as well.