I think (and IIRC people have done a few studies on that) that in the typical good Wikipedia article nearly all the content was contributed to by a couple editors, but there will be dozens of users who’ve made stylistic changes.
I think (and IIRC people have done a few studies on that) that in the typical good Wikipedia article nearly all the content was contributed to by a couple editors, but there will be dozens of users who’ve made stylistic changes.