Technical name for this stuff?

[John Kogel]

Spelling in a non-phonetic, poly sourced language like American English is not correlated with the intelligence of the writer.

There are some fanciful quotes variously attributed to Jefferson, Mark Twain, et al about the narrowness of people who can only think of one way to spell a word. I liken spelling to good table manners, like not belching loudly after the meal, or wiping your mouth on your sleeve...

I liken it to lichen or likin' it. []

In Canada we deal with American Spellcheck because that's what everybody's PC comes with, while still adhering to The King's English spellings. It's a joke.

That foil underbelly could trap moisture, but other than that possibility, it is all good.