There's something to be said for building out your vision and testing whether others are interested. It was refreshing to see the grandparent post because the usual startup advice seems to be to abandon your vision entirely and build some average SaaS thing that's a composite of other successful things. (a) I don't think that actually works and (b) if people want to do that, why not just get a job, if you're effectively going to be just as constrained. It's much more fun to try and take a risk, if entrepreneurship is the space you want to play in.