Just get rid of valorstones all together. If I have the crests farmed for an upgrade, clearly I’m capable/have done an appropriate level of content to earn the gear. Why do I need an arbitrary secondary currency to farm on top of the crests?
My problem is not that valorstones don’t fall for characters that you play all the content with in world. The problem is that those characters are quickly capped and soon the problem is lack of gilded crests, but then you play alts and do not want to grind everything again and if you have renown, you get an overabundance of crests from renown and a lack of valorstones. That is why people are frustrated; you have two characters/one player and cannot upgrade either without more grinding.