It is very easy to delude yourself that the idea is so great that dozens of other people are just about to hit submit and take the name (and idea) away from you.
I get as far as learning some new technology, which is great, but not far enough to get to a useful MVP.
There is also a lot of housekeeping to sort out for a real service, which is a time and sometimes cost issue for something that must be bootstrapped.
The underlying issue is that many worthwhile ideas are hard and need solid effort and commitment to execute. Registering a domain name does get you very far.
I've been using it for many years and it works just great.
Hope you find it useful. Let me know if you have any questions. We are still in beta.