So, magic and gods are excuses to have a flawed setting? There should always be a level of coherence, despite of the imaginable or unimaginable content.
You are telling me Diabolis, Krans, etc find each other attractive and can engage. Krans coupling with Krans is understandable. They could simulate carbon based emotions and feel inclined to protect their progeny in grouping, I can buy that: it's easy to grasp.
But you are telling me a Kran can feel, and it is actually normal (since it is supported by the community), attracted by a Diaboli. I doubt Krans would find Diabolis suitable mates and vice-versa and therefore there should be some kind of law established to protect each race from the demented (ie zoofilia including rational beings)
The fact that mammals in PS can interbreed like crazy logically means that they are all one species with different possible characteristics. Understand that if Race A and Race B have no problems interbreeding and creating viable generation they automatically both belong to the same species 1.
We can ignore genetics, sure. But can we ignore logic? If they can all bond and mate, and if for me, an Ylian, it is equally well to marry a dwarf, an ylian or an enkidukai (because I am able to find them attractive and also interbreed with them) then would there be much of a distinction between our races and customs? I think not.
I believe this current notion makes races more alike than they should be, and ridiculously so.
About Quests:
-High-Quality Rewards: should be offered either because of an amazing job, or because of a very fortunate situation. GM oriented events would be more suitable to distribute these than quests, though there could be some quests that only very "qualified" people could attain, repeated or not (depends on the effort involved).
-Factions: Either repeating quests does not award additional faction, or earning faction with some group should decrease the faction level the character has towards other groups.
-NPC:
There should be other ways to know NPCs other than doing quests you can't tell anyone. Yes, good I know there's a Kran which likes poetry. What good does that do to me, if I can't actually role play that it exists because I'll get a "That Kran? I wrote a poem for him not long ago." "Curious. That's what I just did." "Oh. It was just that one too..."
There is a lot more to our RP besides quests. In fact, my RP is actually everything but quests. Hence this wish.