Why is a gender specific language important?
PS. I have only rudimentary knowledge of Arabic so any native speakers, forgive me if I'm way off.
In spanish, for example
La casa de mi amigo / La casa de mi amiga.
If you were to try to do it in a gender neutral manner ...
La casa de una persona que conozco bien.
Which translates roughly to "the house of a person that I know (and know well)."
English is the one where people get bent out of shape over it.
By that logic, Americans are probably more upset about this than, say, Nigerians (I assume Nigerian culture(s) are rather less PC than American culture).
I also suspect it's a PC thing.
In English, some people still use they/their in this case. In Portuguese (and I think Spanish and other major Latin languages) you can't do that.
Now, Russian has 3 genders, that includes neutral, but neutral is a gender of its own, not a catch-all case for when things are neither masculine nor feminine. So unless the product completely avoids using verbs in past tense, making the language gender-neutral and natural-souding for Slavic group of languages is pretty much impossible.
In Chinese, while he and she is pronounced the same way ("ta"), the writing is different for he 他 and she 她. That's the only difficult part I could think of in Chinese, there are no changing word endings, etc.
In German is should be more difficult, because there is no "their" like in English to replace her and his.
Here is how that looks: „Fügen Sie hier eine kleine Beschreibung über sich ein, damit andere wissen, dass sie die/den richtige/n Name erwischt haben.“ (“Put a little about yourself here so people know they've found the correct Name.”)
See those slashes at the end? They just write both and separate the two variants with slashes. An ugly and common solution, I’m not aware of any better solutions in German, though.
If someone hides their gender and you see posts like Dan who wished to hide their gender would be exposed with "Dan has not filled out his profile yet."