The author released it under a do-anything-you-want license. Then was hurt other people used the code for commercial and competitive reasons. The first paragraph showed the root cause was not thinking through licensing in the first place. Now, they've seriously considered it, decided their goals, and re-released it with a mix of generosity and self-interest.

We should probably remind people that licensing is an agreement between them and the other party deciding what can and can't be done. Make sure you've considered things like profit, competitors, source redistribution, etc ahead of time. Then, pick the license that suits your goals best. For many, that's source-available licenses instead of open source.