zealous commentors

I was looking at articles about the 5-year-old kid who was voted out of his class recently (which has opened a lot of debate about mainstreaming, autism, etc.) and saw, among the normal posts with the occasional misspelled word, someone used the word "zealotous". No joke. And then I searched for the word "zealotous" on the web and found many hits! Grammatical and spelling errors I totally understand, happens to all of us. But zealotous is on a different, much funnier level. Should we also say sinnerous instead of sinful or saintous instead of saintly? Or maybe we could make bigotous a word, since bigot doesn't seem to have an associated adjective...