It's a writing thing. Sometimes I'm so eager to get a general thought onto a page that I don't bother checking if it will make sense to anyone but myself and obviously grammar and spelling fall by the wayside. It's why I usually proofread anything I post and even then I occasionally goof. Like this morning for instance. I wasn't completely awake and spelled indubitably as indubatively. I quickly purged that post from existence and pretended it never happened, but it did.