"Also consider that when you misspell a word, it makes it impossible to find your post by searching for that word."
The way I see it, that also seriously impacts google's ability to find the pertinent thread, as well.
Yes, Google does have some ability to determine the relevance of alternative spellings, but it's not a sure thing.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.