Well, it seems absurd to me at first to think that blood runes should be craftable. They're arguably the most powerful rune in the game, but yet, I thought it absurd to think that death runes would be craftable... but now they are. (and I happen to be in the process of crafting 60k of them

). Ofcorse there are some way that JaGex could make it so blood runes arent just as fast as all the other runes (like how you can make death and chaos runes at the same rate) by doing things like closing the abyss to blood runes or makeing it impossible to take pouches into the blood alter.
Rs BnB has 77 listed as the level for bloods, I am assuming that is a well educated guess.
So, what are your thoughs?