Jim Trodel said:
I know but they are user based controls not Server based and most users have no clue how to do any of the things required: 1) Find them, 2) Install them, 3) Launch them, 4) Edit the initial settings, or 5) Modify the settings later. And teaching them would be quite time consuming.
This is true. It can be remedied, and once the users have been taught they can use their skills *all over the web*, not just on Wikipedia. If we do server side controls we'll still have to teach people how to use those. There are lots of external people who would be only too willing (as a form of evangelism) to show people how to use a browser controls to block images and enable them to be shown on a mouseclick.