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I don't presume to speak for Nvk, but I doubt he would get bent out of shape over forking for personal use or in an attempt to improve the code; i.e. add features or enhance security. Sure, there's no financial incentive to do so, but that doesn't stop people from donating their time for open-source projects that also don't offer incentives. I'm not a coder, but if someone were to fork the firmware to include support for XMR, I'd be all over that. 
We found a balance with MIT+CC, you can indeed fork, change it, sell it, the intention is Commercial Limitation; ie cloning the whole code base and starting a competing product as it was done. Funny enough little on the hard stuff we built that was clone has changed on the fork.
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I've been reading up on Common Clause licensing, and it seems many knowledgeable folks are predicting it's days are numbered. I still don't know how it differs from Creative Commons, but one article suggested that'll be the preferred licensing in the near future for developers that want to be transparent, but restrict the competition from monetizing their work.
If that came to be (which I don't), we would seek a different license or write a new one with strong user rights and creators protections against fiat maxis.