I don't get you people at all. You can still work on your pos 2-3-4 while in the same time gathering those Epic Refines also. What have you done on 1.0 or 2.0 versions of this game while you had Basic Medium Refine Runes? You were focusing on just pos 1? I tend to have doubts about it as every player has all equipments on Advance Refines at this moment in time. In future there willl be maybe leisure ways to get Adv Refines from events or shops or whatever place.

"But with the introduction of the new refine system I'm done" tells much. Beside it when someone's message has like 40-50% of its composition talking about the refine system I think is clear what was the reason and anyway I'm saying it as general opinion to all that call the quits.

That depends on how you manage your resources I'm not saying that is not hard but not impossible and maybe in future both will be more available. And yes about basic and medium the quantity was indeed less but the principle is still the same also you can pop an epic rune before 1500 or even 1000 as is pure RNG maybe.