Question: Is it possible to change an account's username?

I made this account a long time ago and recently I've been changing usernames on other sites to reflect what people tend to know me as on Discord rather than an old name that I no longer click with. So, is it possible to change my username?

Not right now. But every so often there's a thread for username changes. Unless you're a supporter, in which case you have extra changes you're allowed to make and there's a different thread for that.

EDIT: According to this thread the next time you can change for free is in May.

Thank you. I'll keep that in mind.