A design philosophy flaw. Misunderstanding what is fun and reward structure.

[Mahrze]

Given the exp curve (it doubled from five to six) I kind of wonder if anyone will get 20 within a month. Or that it might even take a month to get a level then.

I am much more curious at the drop rate once e-lvl reaches 20 and working with 20+ mobs. If it's the same or will overpowering 1hKO genocide on lower level mobs yield better results.

[RiyahArp]

I am much more curious at the drop rate once e-lvl reaches 20 and working with 20+ mobs. If it's the same or will overpowering 1hKO genocide on lower level mobs yield more results.

You don't get a chain if the mobs are below your level solo, I'm sure it's the same with parties.

[Mahrze]

You don't get a chain if the mobs are below your level solo, I'm sure it's the same with parties.

Per patch notes, chain only increases drop rate and quantity. My statement was to compare lvl 20 mobs that may take 1 min to kill in a group of 8~10 per min or you be a one player black death on low level mobs and AoE "x" number of mobs per min which is more proc chances.

[Squintina]

Per patch notes, chain only increases drop rate and quantity. My statement was to compare lvl 20 mobs that may take 1 min to kill in a group of 8~10 per min or you be a one player black death on low level mobs and AoE "x" number of mobs per min which is more proc chances.

That chain is called Exp chain.

From the patch notes:
"Upon defeating an enemy, players will have a limited window in which they may attempt to defeat another. If successful, they will initiate an EXP chain."
"Defeating subsequent enemies while an EXP chain is active will earn additional elemental EXP. This will also increase the drop rate and quantity of rewards."

So the exp chain happens to also increase drop rates and quantities.

And in red it also says: "EXP chains cannot be initiated or extended by defeating enemies whose elemental level is lower than your own."

A level 20 attacking a monster < 20 will not get a chain. Thus it'll never be more efficient for them to farm lower level mobs for crystals.

And I can attest to that. While I was level 5 helping a group of level 1-2, while attacking level 3 & 4 monsters, I did not receive any chains, and because of it I was not receiving any crystals.

There are only 2 currently known incentives for a level 20 to go attack lower level mobs
1) they're in a party with lower level people, taking on mobs with levels somewhere in between, to help such people get both exp and crystals, just to be nice.
2) they're trying to spawn a Notorious Monster fate (which has sync so high level people will get rewards)

[TaranTatsuuchi]

...

I think he's trying to speculate on wether it would be more efficient to kill 1 high level mob with chains, or much more lower level mobs without chain.

I don't think we have the data to come to a conclusion about that yet.