Height Comparison

Part of it is that Blizzard has this weird obsession with bigness. Orcs were human height or shorter during the strategy games, then suddenly became insanely tall for the online games. Also, 7 feet tall seems to be the average for a weird number of races: gnolls, draenei, worgen, night elves, centaur...why that exact height all the time in official game lore?

Anyway, good work on your part. You're putting a lot of work into the backstory here and it's going to be detailed and awesome once you write it all down!