It's amazing what people will overlook.
Here is his first paragraph, quoted directly :
That is not how you spell "meter" when referring to a measuring device.Originally Posted by Bob St. Cyr
A "metre" as the rest of us Europeans know, is a measure of length
In his next paragraph he reverts to conventional spelling of "meter", however, but then goes on to use "meter" and "metre" indifferently throughout the rest of the article.