Huh? I've never participated in crowd sourced funding - so maybe I'm out of touch - but if I gave someone $100+ for a product and they then proceeded to tell me it's about to ship for multiple years I'd be pretty annoyed. That is a really shitty thing to do.
Would I lose sleep over it? No, but if I encountered a blog post or some other public interaction with this person that has been lying and gaslighting me about a product that was allegedly done for years I don't see a problem calling them out about. That is highly antisocial behavior and should be highlighted so that other people do not fall victim to it. Not to say mistakes aren't made and people don't change... but the repeated attempts to continue gaslighting about this product would indicate that this is not a one off oopsy.