Personally I think it has little to do with the prospective idol or her (weak) celeb status or if or when she would debut. I also doubt she has any serious risk of exposing her real identity yet.
I mean this seems to be both a gimmick and an experiment. And this particular debutante is just the (almost) random-selected guinea pig to run this experiment, well at least that's my working hypothesis.
My guess is there are two concepts to be tested: (1) can crowd-funding works as a business model for AV? (2) can crowd-funding works as a marketing gimmick to inflate a vid (or a debutante) sales/ranking?
(2) is more modest and realistic. It's possible that 3-4 months from now, the marketing fad is over and we will never hear about crowd-funded AV again. It's also of course possible that it would work and we will see this becoming a "regular gimmick" that get used from time to time to promote sales for certain idols and/or vids. But personally I doubt this will work out in the long term.
(1) is more crazy, but if it works out it could be a revolution. Suddenly prospects (potential debutantes), current idols and retirees can all interact directly with customers and fans in the business of AV. For both prospects and retirees the decision to debut/unretire is often tipped by the amount of money. So either a studio/producer/agent front the money to the girl, he would then profit (or loss!) from the sales, and also because of his role of "developing" an idol, he would "own" the idol. At worst this makes it possible for some bad apples to exploit and abuse the girls, as there were already enough accusations and cases. At best, we still have the "development" of an AV idol/career a dark art, so the industry does a lot of things that seem quirky and disappoints the fans. And we as fans can't tell if a certain disappointing quirk is because we fans lacks understanding and unrealistic expectation, or because the industry is stubborn and ignore fans. Now if the bottleneck is not the big capital requirement any more, anything new (new debutante, or new ideas) can be tested by a very democratic process: if the crowds fund it, it goes.
Perhaps 20 years from now, most AV idols will become self-employed small business. Studios will become only a production house. The idol raise the investment funds from the crowd, pays a studio/production house for the service of shooting and producing a vid (she will hire a director/photographer to shoot the vid, some AD/tech to do lighting and sound, either a writer or a license fee for a stock-script, and most funny to imagine: she will pay some studs or shota or ugly men to fuck her) , then pays DMM/Amazon a cut for sales and distribution service. She can at least guarantee break-even even before taking off her cloths, and any excess sales would be 100% in her pocket.
Yeah I know... I'm off to crazyland... But can you totally deny the possibilities?