the way many people overuse the adult warnings on DW

I agree with this, completely. I'm perma-logged in, but sometimes I link people to stuff they might find interesting and didn't notice the poster hadn't overridden their 'adults only' standard flag for a perfectly innocuous post about, say, politics or baking.

It's a good feature, and I'm not sure I'd want to remove it, but people seem to think it does things differently to what it actually does.