Agreed, information disappearing without notice isn’t ideal. In academic writing at least, citing something that’s on paper, even if you use a digital copy of that paper copy, is much better because there’s less question of permanence. A paper copy will survive somewhere.

The last Wikipedia article I worked on covered the Leading Edge Model D, a PC/XT clone that was popular in the late 1980s here in the States.

Basic problem is Tim B. Lee WWW. I can not believe that it become mainstream technology for data exchange.

Wikipedia is “trie” to add all missing functionality to WWW, functionality that should be build in system level.
Same is with Google – Google just created missing functionality of WWW: two way links.
…
WWW is main problem of our time.
Many, many internet companies become big names just because they add missing functionality of WWW:
Medium.com is among latest – they add ability to comment specific paragraph or sentence of text. Something that Ted Nelson write about in 1974.

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Regarding my personal experience with Wikipedia: 10 years ago, I edited article “True Color” with remark that True color was not always reserved for describing 24bit colors. Before windows got support for 16 million colors, True Color was used for non-indexing color modes (modes without CLUT – color look up table). Today this article use term “Direct color” witch is odd. I first time saw this term in this article…

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btw
what was your Wikipedia article regarding vintage computers that you mention in post?