This looks like a fine topic concerning mechanics that could use some more light.
Now that I've found the time to look closely at every posting in this massive forum I couldn't help but feel as though a few things mentioned could use a little more light on the subject, or examples or tables. If any of this is actually explained somewhere and i somehow missed it, I apologize in advance.
-Weaknesses: although self explanatory in their own way, I would like to see a table concerning possible weaknesses to choose from, whether they are applicable in some way, which ones are acceptable and which ones are far too specific. (ex: blonde hair, yetis, sneezes, purple lights ect.) Wouldn't want that to be exploited to the point of pure silliness.
-Domain Benefits: Now the domains themselves are also fairly explanatory, but the levels themselves seem to be a bit fuzzy. Perhaps a table explaining the benefits of higher level domains, or examples to what certain domain levels can accomplish vs. others?
Only two I can think of at the moment, but either way this looks like a fine topic to add more in the future.