This is as good a thread as any to say this:

I'm getting tired of these "launch to gauge interest or collect potential users" pages.

I've seen a lot of discussion and encouragement of these things, here on HN and related sites, within the last few months. It sounds like great advice and a good practice. It may even work. I signed up for one or two when I first started seeing them, in the context of "Oh, this is what those HN posts are talking about."

I don't bother anymore.

When I land on one of these, it leaves me absolutely cold. I click on a link because I'm interested, even excited in rare cases. These things throw cold water on me. "Here's a cool thing! ... But we'll show it to you later. !"

But that's me. If they work, great, I suppose. Maybe I'm not part of the desired demographic.