If you are doing something serious then you should really use a .com. If initially you can't buy one then using something else is fine I guess.... OR as PG wro

If you are doing something serious then you should really use a .com. If initially you can't buy one then using something else is fine I guess.... OR as PG wrote in 2015, you should think about changing your name. https://paulgraham.com/name.html https://paulgraham.com/name.html