There's no shared source license which bans commercial usages but I think the software industry desperately needs one. I'm selling the software and want to enable the user to make modifications for private use and even share those modifications if they so desire = I have to hire a lawyer and hope he comes up with something that stands the test of a trial.

Not giving away something for free (as in freedom) but asking for free legal advice may sound ironic but it's not about the money, it's about having something reliable for a very common use case.