hello guys,

i was wondering if you can end the main quest without killing paarthurnax and after the main quest just kill him?

and i want to join the blades so i can recruit people and slay dragons but i need to kill paarthurnax.
can you just simply kill him and nothing wil happen ( only the greybeards will hate you i dont care)
but would there be anything you cant do when you kill him if you kill him can't you finish the main quest.

thanks