To be clear, I was not recommending it. It looks to me like a good way to go broke. I just thought it was interesting that that was where are the ladies were. If you want to feel like you are on the TV show "The Batchelor" that is how to do it. LOL.
I have thought more about this, and an interesting next experiment, that I have not tried, would be to explicitly advertise that you were looking for a stay at home wife in an exclusive relationship (for her) and see who or how many are interested.
My impression, due to the many woman who advertise their desire to be supported, would be that there would be some interest in this.
Further, if you were serious, you might even avoid paying for the intermediate dates, if you were say interviewing for the position. By that I mean you would still have to pay for the meal, ETC., and show that you were a man of means, but you may not have to pay her for the date itself if what you were offering was (potentially) full time support.
If you think about it, if these women go to regular dating sites, they are filled with men who want them to split the check, have a job, have a career, ETC., and she is looked down upon as a loser, etc. if she does not have all of this. So it makes some sense that a lady who would prefer to be supported as a man's woman might end up on a sugar dating site.
I did go on one dinner date to try it out. It turns out she was a very nice young lady who regularly attended the Rock Church just down the street from me. So they are not all crack whores, or something.
Not really at a position to try this (advertising for a wife) myself, as I am taking care of my parents these, days and do not have the time or facilities for another wife (at this time) and would not want to defraud any ladies or play with their hearts with false advertising just to experiment.