In regards to Levels and Professions.
Levels: Levels end up about grinding, trying to get to the next one, grinding didn't go down well in Uru (Er'cana Pellets), I'm in Uru to explore not to grind, I play WoW for grinding.
Professions: I don't see why you need to implement a structure for professions when they basically do nothing. It's just easier to say Hi I'm Tweek a D'ni Historian. If you're going to have professions they need to actually do stuff I guess, but even then they can end up being somewhat pointless.
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Beneath - Journey of an explorer in D'ni
UruBlogs - Blogs from Uru Explorers
Tweek@Guild of Writers - Age development Blog.