It would be wrong, imo, if they were charging a higher tier to use a community built plugin.
The nature of contributing to OSS is that you are spending your time for the benefit of for-profit companies. That is, very possibly, a poor business decision if you are not being compensated directly while doing it. If you aren't being compensated, then you should expect to receive everything the MIT license lists under Section 42: Stuff The End User Owes You.
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It would be wrong, imo, if they were charging a higher tier to use a community built plugin.
The nature of contributing to OSS is that you are spending your time for the benefit of for-profit companies. That is, very possibly, a poor business decision if you are not being compensated directly while doing it. If you aren't being compensated, then you should expect to receive everything the MIT license lists under Section 42: Stuff The End User Owes You.