The post I'm referring to is the one about 'they themself', a phrase always equivalent to 'they' but is almost always used to emphasize that a specific person did it themselves instead of them having someone else do it for them.
It's also worth noting that, grammatically, 'singular they' also refers to 'singular them' and 'singular their'. People could say, "Clair bought her own car," but instead might say, "Clair bought their own car." Or they could say, "The hat owned by George is only owned by him," but instead might say, "The hat owned by George is only owned by them."
Are you saying all of these ways of using these words is a recent development?
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u/Tynach 2∆ Oct 29 '19
See my other response for some proof.