Kind of tangential, but even here on HN you can see how awkward people get with naming their projects/products. Either "stealing" an already established name from a completely different field or something so generic it's hardly searchable on the interwebs.
I don’t believe most start-up get “stolen,” there’s just a limited set of words and many are in use in different fields. Plus trademark expressly allows different marks by industry. A recent example here was a screen share app sharing the name with “screen,” the Unix tool. But shouldn’t that be okay? Most people won’t be confused between the two.