Words Easy to Misspell

I have to think about the word 'misspell' itself, because it seems like a tricky one. It's never good to see someone complain about spelling, then misspell a word in their complaint. How often I've seen that. Or use some other phrase or bit of grammar in the wrong way. (But of course who really makes the rules?)

Probably everyone has seen that little snippet of text that has everything misspelled in it. It's come around on email a couple times. Even with so many mistakes you're still able to read it, and pretty fast at that. Because, as the old scientific theory goes, and it appears to have experience and testing validation on its side, your eye isn't really looking at the words to examine them in detail as to their component parts. But there's just a quick connection going on with your brain, and it doesn't make any difference whether they're spelled right or not. There has to be limits, obviously. The first letter should be right, I would guess. Otherwise it's the Jumble.

I've been looking at a lot of articles from the 1920s and before. And words were spelled differently back then. Like postoffice as one word. One newspaper, maybe trying to be zippier, spelled words like tho, thru, altho. And kidnapper, which to us usually has two p's, only had one (I checked the dictionary the other day and either way is judged OK by the dictionary folks.)

I appreciate the spellchecker. Is that one word or should be it hyphenated? Firefox is flagging it. But it looks OK to me.