"Hello, I'm entitled to your brain cycles. You must pretend at all times to buy into my ideology and correctly use its shibboleths—or else."pic.twitter.com/t37Ss3usFY
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
descriptively, singular they is only grammatical with a nonspecific referent, and this is true of the uses cited as proof of grammaticality
The only thing that makes any pronoun ungrammatical is ideology. There is no innate reason in language to adhere to the gender binary.
If that's your view of language, gbrgauhug barglurghab ggfbaw 54hdgfsh fbglragugb bglahubgarg
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.