Might I ask how you qualify "better" (sounding) in this case?
Some people feel that exclusively using "he / him / his" effectively erases half the population when such language is used in discussing a topic.
The free speech we all enjoy stops being fair, equal, and "just an opinion" when it is suddenly reinforced and backed up by influence, the ability to suggest policy, to set an example for behabior and tone, etc.
As an admin / moderator, I would have expected you to take more care with a more friendly / neutral choice of words.
"sounds better in your opinion" doesn't make it right.
Stuff like "themself" just sounds wrong. "Them" and "they" are plural. If you use such words in a singular sense, you either need to fill the sentence with plural words (e.g. "they are"), which makes the sentence ambiguous and often sounds strange, or you need to break agreement rules (e.g. "they is"), which sounds
really bad.
"He", etc. are the appropriate singular words to use when talking about someone of unknown gender. "Masculine" pronouns don't really imply any gender. Using masculine pronouns is how this issue has traditionally been handled in English.
Plenty of other languages are "unfair" in this way. In French, if you're talking about a group of people which contains any males, you always use the male form of "they".