Why are you scared? Cause someone else's site is down? How about the ones that have been up and running for years and still working? I think you should look towards being positive and launch your site.
Even when it goes down, find the fault and solve to get it back running.
My site isn't static, but has a rather comlicated background service, that I have fully built myself... I will be demanding payment for it, so if it goes down, people might become angry at me...
Oh, well, I get it now. Sure, people will be definitely be angry at you if it frequently goes off and on.
excited to see this whenever it launches