What if these items in cashshop:

Mounts - This definitely kill progression to hunt and raid RNG. Since you can just get the item with real money.
Dyes - This might be okay... maybe dye packs random colors?
Transfer Service - reasonable...
Fantasia Service - okay
Minions / pets - I don't mind but not sure about the other's opinion who is a minion collector.
Glamour / Skins - NO... this will just kill off some farming gear drops. I am never a fan of buyable skin from cashshop, this will render dungeon run pointless when you are decked out. (I have not been in raid or anything since I have just started playing 1 month ago but I've heard people said certain gears look drops from certain bosses.) If this is not the case well this prove that will hinder the activities in MMO. Everyone will be lazy spending money rather than doing runs.