I created a landing page for my project, and posted a comment about it in a thread in a relatively niche subreddit.
I received some really positive comments about the project / idea. Like "Are you ******* kidding me?! That's fantastic!" and "Signed up to the mailing list, super cool".
I've had more than 30 people sign up for updates since the comment, but I don't know what to do now.
I guess I should setup an automated 'thanks for subscribing' email...
I know I need to be talking to users all of the time, but I only created a landing page to see if there was interest - it looks like there is, but how much is enough before I actually start to build?
Should I keep working on getting the project out there for more interest before starting to build? Or start building now, and keep promoting / talking to users along the way?
My main question is: Is some very positive feedback for my idea / project from a single reddit comment enough to start running with the idea, or should I try to get more people interested before building?