I'd say make all buffs self buffed but alm, keep alm to buff people and also noob characters to ease their grinding.
Another thing that could be introduced is the NPC that is in isen (introduce it in Jainus) which sells 10% boost scrolls for coins. This way people can still get 10% alm scroll, 10% melee, accuracy etc. scrolls for a low cost (ingame coins) thus making noobs able to grind with ''buffs''. They will be accessable for any player, they cant be debuffed, last for a short period, willl lower the coin inflation thats currently going on and will be in general nice since there will be no buffs available.