I think that people who set Web services up really need to think about what territory the service is designed to operate in and which legal system(s) they have the time and resources to examine.
The rest of the folks in the thread and on the Github issue are exploring what those terms mean. I'm not seeing you provide much insight or rationale into your interpretations beyond a simple "No, we are not."
How are we failing to make clear the various suggestions for making your work actually useful instead of potentially harmful to the projects you claim to be trying to help?
But as much as I try to contort it, I can't see how you aren't accepting a contribution on someone's behalf.
"How does it work?
People donate bitcoins to projects. When someone's commit is accepted into the project repository, we automatically tip the author."
from here - https://tip4commit.com/
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Yes you are.