One interesting nuance to this topic that doesn't seem to be getting much airtime is that "real sounding" is super subjective and (perhaps naively on my part) appears to be mostly influenced by western/colonial roots.
A westerner can jam together a common first name and a slightly less common last name as a pseudonym and be pretty confident that it will fit in with the other "real names" on this forum. However, as an example, I'm guessing quite a few of the top names someone from South Africa might consider normal (ref: https://www.businessinsider.co.za/the-most-popular-names-in-south-africa-right-now-2018-8
) wouldn't pass that same test. (e.g. "Junior", "Gift", "Prince", "Innocent")
I'm not trying to start a fight here or attack the idea of promoting a certain flavor for this forum, but I do want to point out that it creates a kind of bias and potential inertia against greater multiculturalism if an existing population is dictating whose names do or don't "sound real".
Why should some folks have to be more careful about using their name or choosing pseudonyms from their proximal culture(s) than others? Does that really promote the flavor this forum seeks to cook up?