So wikipedia is now part of the supply chain (informally) which means there is another set of people who will try to hijack Wikipedia, as if we didn't had enough, just great.

Not exactly news, wiki's been used for misinformation quite extensively from what I recall. You can't always be 100% sure with any online source of information, but at least you know there is an extensive community that'll notice if something's fishy rather sooner than later.

I was always impressed by how fast wikipedia editors revert that kind of stuff, so I think it's great advice actually!

What's your solution? If you search google for 7-zip the official website is the first hit.