I have mentioned many times before that I do not have time to spell check or grammar check. I just post things up as fast as I can... If I got paid as a professional editor or writer then I suppose I would have to take the time to spell check.
Until then, I will leave the burden of perfection to the people who get paid to write blog posts. I just do this on the side:-)
And badly.
In other words, you do sloppy work and have no self-pride.