I do not approve of any filing of an application. The word apply was translated by my translator. In the original, I asked about when I can qualify for a rank, and not apply.
Lol, you don't need to approve--and I think there's probably a mix-up in language going on in the translation. It's not a big deal, because I think everyone here understood what you meant to write. I'm not convinced Coolcryptovator thinks you actually meant that Legendary status is something a member has to apply for. You've been around long enough to know that, and I'd think Coolcryptovator would know that as well.
Outside the fact that legendary rank is gotten through post count after 14 days, can this rank also be purchased as the copper rank?
No. The Copper membership isn't actually a rank, because you can be a member of any rank (Newbie-->Legendary) and buy that title, which is exactly what it is (although if you're a Newbie with a Copper membership it allows you to bypass some of the Newbie restrictions on posting. There's no need for it if your rank is Jr. Member or above if my memory serves me correctly).