[pdkl95]

> the word cromulent ... is not even a real word

Only to a prescriptivist[1] trying to keep the language static. "Cromulent" is slowly making its way into descriptivist[1] dictionaries and is recognized about as often as any other new word, so it just as much a "real" word as other new words ("email", "google" (transitive verb), "truthiness").

> the correctness of using a singular they

The alternative is gendered pronouns which have several problems[2].

/* I'm not trying to nitpick your post; I just thought these two Tom Scott clips were fun and relevant to these grammar issues. */

[1] https://www.youtube.com/watch?v=2qT8ZYewYEY

[2] https://www.youtube.com/watch?v=46ehrFk-gLk

[skeuomorf]

That was kinda my point, I was not nitpicking -relative OP's- grammatical usage, I just thought it was convenient to refer to the author in a more specific manner since his details were obvious. I had no idea whether their -relative OP- :) intention was to use "their" in a singular or plural manner. Heck, one of my favorite Stephen Fry videos [0] talks exactly about this!

Also, the videos you referenced are great :)

[0] https://www.youtube.com/watch?v=J7E-aoXLZGY