I agree with MrsMc in the above comment.
I am a dominant female in my relationship, but neither of us have tried Fin Dom. So I don't really have any experience to add here, but I did want to add some thoughts:
I feel that you should only become involved in financial domination with someone you truly trust. This should seem obvious - but I have been approached by complete strangers and asked! In their desperation to experience their desires, some people rush to the end goal and many can get screwed over. Be careful people!
Secondly, I think the dominant in this role has a responsibility to think foremost of the person she is domming here and understand this is hard work. Unfortunately, I have seen at least one person who just had ££ signs in their eyes and had given no thought to the real process here, to the work it would entail. (As Ness said It is hard work.) Building a trusting connection with someone over the long term, working with them to ensure they are getting the experience they want (And I dont know many people who would be happy to just donate money to someone they have no connection with, or someone who did not fulfill their sub needs) and also to ensure the D type uses their power to not screw them over. I mean, you need to have your thoughts on controlling another persons financial life to the benefit of that person as well as building and maintaining this connection.
I have seen that get overlooked. I knew one young lady in particular who got into Fin Dom solely because the idea of money flowing in to spend on herself, which was her main focus. I don't know if she was successful but I am guessing, or hoping not!
As I said I have no experience of this, aside from seeing it around me generally and using my own logic. Maybe Ness can correct me, but I do feel that FinDom, like any other form of domination, is a two way street. He (or she) gives up financial control to their dominant, but expect in return to be treated with respect, to be dominated in such a way that fulfills their needs and to have trust, communication and a connection.
Other than finding the right person (on both sides of the equation) and using your own head to avoid getting into bad situations, I think that financial domination is simply another form of submitting control to another. It moves into an area where the control is higher and the risk is higher and it is no longer just bedroom play. This might be part of the attraction. Its a lifestyle and one that some people CRAVE to experience and why shouldnt they? It is their money, their life and if this makes them happy (Which is CLEARLY does otherwise they would not seek it) then whats the harm. All I would say is the higher the risk to you, the more you should trust and connect with the person you are involved with.
I think some people do not understand how freeing, or how much of a relief this form of domination is for the person giving up control. Maybe its because there are stereotypes of the "gold digging" woman and the poor sap who will give her anything, so she takes the piss and takes advantage and he doesnt even see it. In FInDom, the sub KNOWS the deal and WANTS to worship his dominant and have her TAKE this control from him and use it as she wishes (Hopefully to the benefit of both of them) They set up agreements beforehand. He knows what he gets in return. In other words: Both parties CONSENT to it.
Like MrsMc said: Whatever floats your boat! xx