As the title suggests, list the addons that you believe should be game defaults.
Since swapping to pc, alpha gear and cp profile are massively important to me as a player. I can switch between healer, dps and tank between pulls and fights to fulfill the required role and queue as whatever role I want with the same character at the press of a button. This enriches my play, and having run with a group of similar minded people today, we could swap roles mid dungeon based on skill and experience with least effort to keep the run from failing.
That's just 2 examples of what gamers have brought to the game that dev overlooked.
What else can we as a community point to?