Public keys can be big + Why keep the key there if it is already available somewhere else. and the draft allows 3 ways to add a key - by uri - by OPENPGPKEY D

Public keys can be big + Why keep the key there if it is already available somewhere else. and the draft allows 3 ways to add a key - by uri - by OPENPGPKEY DNS record - by key fingerprint (assuming it's on a public keyserver)