Because it would appear that some people wish to
remove all unsourced
information. Unfortunately that results in stubs like this:
http://en.wikipedia.org/wiki/Cann_Quarry_Canal
That have wikicode that is pretty much impossible for a new editor to
comprehend.
I've fixed that article. Adding footnotes to the same reference on
each sentence is just stupid. Just putting the reference at the end is
fine. Anyone that tries to claim something is unsourced without
actually looking at the reference can just be ignored. If people
checking for unsourced statements aren't going to actually look at
sources, then they are going to miss statements which cite a source
but aren't supported by the source, which is even worse than unsourced
statements.