This is why the editorial practices of Wikipedia is so good. I think any open platform of content management should learn from the Wikipedia way of fighting against Vandalism.

The first two examples are not vandalism at all, they're just made by people not savvy enough to edit an encyclopedia.

(Tadeusz, as I said the list includes "vandalism, editorializing or other non-Wikipedia-approved approaches"...)

It's good if you're famous in the computer world. Vandalize an article on a Kenyan politician or a botanist who died before 1970 and see how long it takes them to react.

[Edit: Removed the hat tip to Mathias upon request, as he wasn't directly involved in this (he only answered my request on how to find the oldest versions of the article on Google/ Google search).]

Thanks for the heads up. I've added the article to my watch list.

Which one? The Kenyan politician? The botanist who died before 1970? Or the famous guy whose page is pretty much invulnerable to vandalism as stated in the OP? How about adding some less frequently visited pages to your watchlist? How about some that require specialist knowledge?