Be that as it may, he chose to call himself "throwaway<#>" instead of something more distinctive.

Why would that matter?

It's a throwaway account intended to be detached and hopefully untracable to whoever the owner/main account is.

What I'm wondering is what point you're trying to make here; account age has no bearing on whether it's a throwaway or not, though the longer a throwaway is used the more it accumulates an identity of its own.

It's four years old, how can you say that it's disposable when your name is younger? Doesn't that make your account a throw away too?

Yeah, you really need to elaborate yourself.

You can easily find me on Mysterious Twitter X, Reddit, and many other places looking up my username (might not necessarily be an exact match).

Account age has nothing to do with this, many people have alternative accounts and this guy literally named his account "throwaway2037".

I really am not sure what you're trying to argue here.

Something that lasts for 4 years isn't disposable.