Back when you joined Wikipedia, in 2004, many articles on relatively basic subjects were quite deficient and easily improved by people with modest skills and knowledge. This enabled the cohort that joined then to learn a lot and gradually grow into better editors. This seems much more difficult today. Is this a problem and is there any way to fix it? Has something similar happened with LessWrong, where the whole thing was exciting and easy for beginners some years ago but is "boring and opaque" to beginners now?
My answer may be a bit generic :-)
Re: Wikipedia - This is pretty well-trodden ground, in terms of (a) people coming up with explanations (b) having little evidence as to which of them hold. There's all manner of obvious systemic problems with Wikipedia (maybe the easy stuff's been written, the community is frequently toxic, the community is particularly harsh to newbies, etc) but the odd thing is that the decline in editing observed since 2007 has also held for wikis that are much younger than English Wikipedia - which suggests an outside effect. We're hop...
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