Perhaps, but I often get the impression that startups think that they've got some kind of valuable secret methodology that is leagues better than everyone else. I feel that this is a really silly notion. Your startup is not a special snowflake. In fact, it's very likely to end in failure. It's the game we all play as entrepreneurs.

Success is largely determined by talent, excellent execution, a clear vision/direction, and strong leadership at the helm. These aren't really trade secrets, it's just hard work, focus, and even some luck.

Seeing a non-compete at a startup says to me that the founders are worrying about silly stuff like this instead of pushing forward into excellence.