I don't have any opinion on grayjay but this is the open source community and grayjay is proprietary. That's the only reason I downvoted your comment
Feel free to use it if it works for you but I think it's poor form to advertise proprietary products in a thread about a free software project.
"Privacy centric" is irrelevant because because this is the free software movement, not the privacy movement (also, this is not reddit, we have a higher standard of conduct here).
Further reading on free software philosophy. Most relevant is why software should not have owners (1994) as this is fundamentally where FUTO disagrees with the open source/free software movement.
I also made a prior comment here about the fundamental difference between "fauxpen source" licenses like FUTO's and real FOSS licenses. You seem to characterize it as "stealing code and profiting off it" but the strength of free software is in collaboration and community, not so much competition, so sharing is considered a virtue here. I talked more about it here in a reddit comment referencing my previous lemmy comment.
This will probably be my last comment on FUTO/Grayjay in this thread, since I've said all I intend to say several times here and on reddit. I might make a master post about the problems of fauxpen source at some point.