Okay, so after what turned out to be a much more difficult implementation (to do right, anyway), NSFW sheets are now hidden from the recently uploaded section of the home page as well as in the update content itself. This is not toggle-able but only applies to browsing the actual home page. A note is left to show how many NSFW sheets were hidden and they are still visible if you click to view the whole update (as well as elsewhere on the site).
I hope this is an acceptable start to addressing these concerns.
Edit:
Thinking about it, I guess once the cookie-based toggle is implemented, it should (and will) also toggle the home page (with the default state being hidden) as well so I'll update that code once it's ready. Doing the full-site toggle is definitely going to be much harder to implement though as there are a ton of places where sheets are linked from (some of the less obvious ones are the comments list and submitter profiles).
I hope this is an acceptable start to addressing these concerns.
Edit:
Thinking about it, I guess once the cookie-based toggle is implemented, it should (and will) also toggle the home page (with the default state being hidden) as well so I'll update that code once it's ready. Doing the full-site toggle is definitely going to be much harder to implement though as there are a ton of places where sheets are linked from (some of the less obvious ones are the comments list and submitter profiles).