It would be better in my opinion if it was defaulted to already have it so users were seeing the settings and if they did not want them they had to shut them off instead of turning them on.
Also the settings in each forum already defaulted to being used turned on instead of having to go in to each one and turn it on it would be easier to go into the ones we didn't want them in and turn them off. Less time consuming that way.
The same for each usergroup. All on.
If everything was defaulted to being already on it just would be much easier to turn off what was not needed than to go and turn on everything that you do want on.
Just a thought