[MatteoFrigo]

The truth remains that if you use "they" as singular you sound like a moron.

"Someone" has indefinite number and is not singular. Implicitly plural antecedents ("anyone", "everyone", "each ...") are not singular either.

[andrepd]

>The truth remains that if you use "they" as singular you sound like a moron.

Bind this in a nice cover and you'll be sure to get your linguistics doctorate summa cum laude.

[urdumbaf]

MatteoFrigo sounds like they are a moron