The CollaborationPreset is just the name of the preset, obviously.
The rest are as follows:
UnlearnRefundRate - The number of skill points refunded when unlearning a skill.
SpecialtyCostMultiplier - The multiplier applied to the cost of obtaining a specialty from a tech tree.
SkillGainMultiplier - The multiplier applied to the daily exp gain rate. The higher this is, the more skill points you will get to assign within a given time.
SkillPointsPerAction - This is how many skill points you are granted for performing an action, like cutting a tree, placing a block (I believe this is correct)
SkillPointPerCrafttime - This is how many skill points you are granted after completing a build project based on it's duration in seconds. (I think it's seconds.. seems right).
As for how balanced it is.. that's anyone's guess. How many people do you have.. how often do people play.. is the server permanently online.. etc etc.