I had a similar names. I didn’t care about “expressing myself” and didn’t want you link it to myself in any way, so every time I would just accept the random gibberish reddit suggests when creating a new account.

Like my current RailcarXxxx username. It was just suggested I think when creating my first Lemmy, and just reused it through instances

I find it odd, but a lot of newer users on Reddit go with the default suggested username and those follow the word-word-0000 template.

At the same time, it might be better for privacy to do that since it’s less likely that someone can track you across platforms if you use the generator built into each platform.