I didn't say that weren't profitable, but I do think it is only marginally profitable. Even with the $10, though it sounded like many people used the clicks. I doubt the profit is what they got into the business for, or hope to achieve. Not having rent is huge. I don't know about there employee situation. If they have no paid employees then they are doing better. But if they have any at all, it gets iffy at $31K in CA. They certainly aren't rolling large.
Anyway, we will likely never know and can only guess. It's their business and if they are profitable or not is not really my business. Who am I to say if they make enough? I hope they make enough to keep the servers on and to remain engaged in the companies success, beyond that I don't care.