Ahh man, this reminds me so much of the other day when I went to a bowling alley and there were these sweet unicorn toys in a claw machine. I watched other people using the claws and could see that they weren't strong enough to catch a unicorn, but I desperately wanted that unicorn, could have spent all my money on it and everything. But I knew I would never get what I wanted so I didn't have a go, and one of my companions only lost 60p in trying to win it for me before giving in. I mean, it's not like it said anywhere that I could actually win a unicorn, and I knew my chances were next to zero after watching repeated failures of others, but sometimes you just can't help yourself trying to win some sweet... unicorn.
I'm not sure if this girls squirt show is as tempting as those unicorns, but I can see why you viewers are in a tough pickle.
At the end of the day, what this girl is doing is not much different to a huge amount of gambling machines, like my *sob* claw machine. People put money in knowing the odds are against them, but they crave the possible win/reward, which in the end is worth enough even if they repeatedly lose. Essentially think of this model's room as similar to a fruit machine where you've watched people putting thousands into already, you think the chances of cashing out are higher and want to be the one to push it that bit further, and once you've put money in, you're invested and therefore feel the desire to continue. Plus the chance seems higher at that point, even if it isn't. Some people will see the scenario and not want to play, others will. The buzz is not necessarily the final reward, if they wanted to see a squirt show they could buy it anywhere, the buzz is the gamble. They know what they're getting involved in, they might grumble about it afterwards, just like anyone who gambles and loses, but it doesn't sound like she's even particularly inviting this behaviour, and she definitely isn't promising anything, but it's apparently causing loads of guys to give her money, so why would she complain? Whether gambling is right or wrong is debatable, but it is legal, and it really sounds like the members are doing it off their own accord in hopes she will do something, and she is very successfully leading them towards it without lying, so more power to her. No one is being forced to tip, and no one has any right to any part of her body that she does not consent to. Member's assumptions and expectations do not equate to consent or entitlement. Just because most cam models get naked and do shows does not mean you are entitled to her body too, or that she is doing anything morally wrong in not performing shows for you to view. Also bear in mind, her regulars may be aware the topic will never result in a show. I've seen models setting ridiculous joke topics for laughs before, and of course have no intention of following them through.
True story about the unicorn by the way, I was legit gutted.