> This is why I don't like open sourcing my projects anymore. Someone else with more resources just forks it and makes profits, thinking that merely acknowledging me pays my bills.
Then I would submit that you are picking the wrong license. The whole point of the GPL/AGPL family of licenses is to ensure that they can't just do this. They will be required to publish their changes, which benefits the original project (you). It's not a perfect solution, but it helps a great deal. The answer to this problem is not to close up and/or go proprietary.
The GPL family of licenses doesn't say anything about profits, competition, giving back or publishing changes at all, just that downstream users (not the original project) have to get access to the source code. Those users probably won't bother to do that though.
Then I would submit that you are picking the wrong license. The whole point of the GPL/AGPL family of licenses is to ensure that they can't just do this. They will be required to publish their changes, which benefits the original project (you). It's not a perfect solution, but it helps a great deal. The answer to this problem is not to close up and/or go proprietary.