Question regarding character auction on site

I was wondering if you sell a character with no items what happens to the items that are BOP like my heroic 2h sword, can i sell that seperately or does it just get deleted? Or does it go onto the next character i buy? I was wondering why all these 80s for sale have no gear but at some point they did?

If the character gets sold, those items are gone. If it doesn't sell and you take it out of Trading, the items will still be with the character.