zlacker

Get the Wikipedia Foundation on board and make sure the wikipedia or other big mediawiki hosts refuse to show any kind of content if such feature is detected in the browser.

Also, if you're a distro mantainer, configure apache and nginx defaults to make this is the default behaviour.

Even better: instead of redirecting to any wall of text with a long explanation of the political and technical reasons of this choice, just display a big, loud "ERROR" message stating that their browser is unsupported due to the presence of this module, and a small tutorial on how to deactivate it from the about:config page, if available.

>>easyTh+(OP)
I do not agree with configuring apache and nginx to do that by default, unless WEI would somehow prevent a server that doesn't understand it from working properly (as far as I can tell, that is not the case). (A system administrator could still change the configuration; this is only about the default setting.)

However, I think the other stuff that you had mentioned would be OK.

Furthermore, a distro maintainer could configure clients by default to disable WEI (or to not include client programs that have WEI).