So, I get that a lot of us really want updates and, particularly for the KS backers, I don't blame them for being frustrated. But having followed the tumblr updates since before the demo came out, this being a deliberate scam is extremely far-fetched. Like, the author put out regular thoughtful content, reacting to feedback, answering questions and sharing bits of worldbuilding, at least once a week, for years. This isn't that unusual for a creative person who's excited to talk about their passion project with potential fans, but for a scammer whose main goal is getting money, it makes NO SENSE. Yes, even with the eventual kickstarter money, a scammer would be counting all that time writing and building a fanbase as labor, in which case they almost certainly made less than minimum wage. Literally, unless they are an extremely fast writer, working at McDonalds would've been a more lucrative use of time.
It seems much more likely that this was a sincere creative passion project that got derailed, and that sucks, and I think a lot of us are still checking back periodically because we'd love to see all this effort reach a fulfilling conclusion. And on that note, idk if anything any of us say here is going to have any impact on whether there's ever a real response, but if it does, I feel like this sort of conspiratorial thinking is probably not helping.
(There are other things that don't make sense with this theory, either, like the fact that the only collaborator I know of (SweetChiel) has actually finished and released multiple games, and the fact that Agashi's other smaller game was completed and made available for free a long time ago, but I'm trying not to tangent. If anyone reading this hasn't played "This, My Soul" yet, you should, it's really good!)