Also, hanging out on forums for software entrepreneurs, I see people making the same standard mistakes again and again.
Not doing market research.
Taking too long to release v1.
Not spending enough time on marketing.
Lifetime licenses.
Obsessing over piracy.
See also: https://successfulsoftware.net/2009/07/21/ten-mistakes-micro...
Also, hanging out on forums for software entrepreneurs, I see people making the same standard mistakes again and again.