Yann Forget wrote:
I'd say if
someone links to [[ph]] it should find [[pH]], and editing
[[ph]] would open [[pH]] for edit.
No, for me [[Ph]], [[pH]] and [[ph]] are three different words.
If I edit [[pH]], I don't expect to find [[Ph]].
But maybe a link in == See also == might help.
The main reason I'd have for it is that on the internet, people often
just search in all-lowercase, because they're used to capitalization not
mattering. So if they want to find the article on pH, they might just
type "ph" into the search box, and the way our search algorithm works,
it'd take them directly to [[ph]], since it'd be an exact match. Of
course, if there are "see also" links to [[pH]] then it's fine, but it
makes those links necessary, because [[pH]] won't by default come up in
a search for "ph" if there's also a [[ph]] article.