The problem here isn't that the unusual options exist in a hidden away tab. The problem is that the options to revert to the defaults are in the same hidden away tab.

Users with images turned off by someone else wouldn't be confused if there was a yellow stripe across the top of the screen with a "you're viewing this website with images turned off [turn images on]" type message. Same goes for a "this page may display better with javascript enabled. [turn javascript on] if you trust this site" message for those browsing with javascript turned off.

Similarly, as the original post points out, the big issue with SSL is that you get a scary (and inaccurate and incomplete) message telling them to email the website owners because their site is broken, and not a simple message they'll need to "click here to turn SSL secure access back on" to view the web page.