As always, it seems to be about trust.

It's very easy to see the dangers and general unfairness of a situation where (vulnerable?) people are controlled by a dominant demanding money not for a service, but as a service. Dependence and bankruptcy (with all the nasty consequences) could seriously ruin your life. And meanwhile we imagine the 'dominant' not caring and asking for more.

Thing is, this doom-scenario could just as easily be applied to a 'normal' D/s relationship, where often a submissive gives up about everything apart from their bank account. In fact, the dangers here go far beyond losing your money when meeting a rotten dominant. One could say this financial slavery is much less risky than the real thing. It's just the money that gives it a bad feeling to it, as if that's the (only) motivation of the dominant who therefore won't give a damn about the subs.

So as long as a dominant does not exploit the trust handed over and the submissive does not betray trust by not telling when a limit's reached, why not? Sounds familiar? *wink*

That being said, I would be weirded out if offered a large amount of money. (Not that anyone ever does, of course. ) It'd feel like being paid, and that... I dunno... gives a submissive control, maybe? Or perhaps gives the impression of being motivated by cash? Not sure about why, it just does not feel right.