"rare names" does not actually mean rare, because YES, every name is one of a kind
rare name means other people could actually want it, meaning its not just a pile of bullshit. so "imatotalwhore45745" is not rare because only you like that name, but "runescape", "a" and "cake" are rare becuase hundreds, if not thousands of people have tried to make these names and want them.
just don't be a technical whore, think about in game who you would follow and be like "OMGEE!!!!", someone named "fuckmyself3462w5602" or "a"
practice what you preach.