"The maintainers of open source projects have the responsibility of keeping the source destination open to everyone and not changing the rules midstream."

Since when is anybody entitled to any free software. Projects can do what they want with their code, and while free software (the Stallman kind) is nice, if projects cite you as the main reason for their change of direction, you are intellectually dishonest if you just blame them for not being willing to do volunteer work (for you) anymore.

This, to me, looks like an abusive "look what you made me do".