You’re right, as an OptiX insider and one of the two forum mods you referred to, I probably can’t be trusted. ;) However, we do hear and understand your concerns. The OptiX team is working very hard to release the next version containing RTX support. It is on the way and OptiX will be supported into the future.
If there’s something we can do to help you save your project before you make your decision, please consider contacting OptiX support directly with the details of your project needs by emailing firstname.lastname@example.org. If you have a lot invested in your project, it would certainly be disappointing to discard it prematurely. Either way, we may be able to offer advice on your path forward.