Re: right on @mike acker
Unless he turned off the auto-capitalization feature, given it often can't tell the difference between a sentence and other character strings containing periods/full stops.
Or had turned off auto-correct entirely, being tired of, say, trying to type an abbreviation such as "BMW" only to find MS Word has helpfully "corrected" it to "Bmw".
Or unless he turned off the "Check spelling..." option, being tired of distracting red underlines in documents containing perfectly good words the built-in dictionary doesn't happen to know (you don't work in biological research or advanced science, do you?)
I don't care for misspellings either, believe in rules of grammar, do my best to write well. However, this is an informal online forum, and contributors are often in a hurry.
Sure, I'll be one of the first to point and jeer at a mistake in an edited, proofread, professional publication.
But suggesting someone run their comment through a word processor before posting seems a bit cruel. If there is anywhere we should be allowed freedom from the tyranny and repression of exposure to buggy, crashing applications, it is here. A time and place to rest and recover from the software beating we take elsewhere.
Also: Vive l'orthographe créative!