I certainly see no problem with the discounted bloodpack vending lady in the premium guild halls. I like that i can buy my blood packs in bulk for less. I also see no point to fruitless and random attacks in the guild. Sounds immature, at best.
I am also appreciative of the 2h ally jobs that award blood packs along with gold and xp. Once i discovered that, i was able to keep my blood pack numbers up. :-)