I would rather it were disabled by default, if it does get enforced... In any case it would require the option to go back and alter the settings (we can't even alter thread titles right now), since I know at least I tend to miss unticking all kinds of boxes. People usually do. They also forget to press "confirm" after altering something. 

(Honestly, I wouldn't be so against it if I hadn't seen this kind of system's effects in actuality. Basically, people are constantly reminding the OPs to add them rights. And then discovering they still don't have the rights when they log back on tomorrow, although the OP is certain the rights were added... With people who visit somewhat irregularly or are in different timezones it can especially be a problem.)