I've got my first email for https://www.unblokd.com/ yesterday - someone who subscribed to be notified when I'm making the web app public.
Got 5 more after that. I can tell you it feels great.
Posted a lot into the void before this happened. Iterated on the landing page about 20 times before I got a reaction.
My goal right now: get 100 emails so I can have a strong base for offering invites for people who want to test the app.
I'll be posting growth updates here weekly.
I've been asking for feedback on Reddit, on Twitter and on here. IH is the only place where I received any relevant reactions, which is why I love it.