I'd have to admit that I sometimes take things like that into account. A couple of misspellings or grammatical errors... no problem, honest mistakes or oversights. But when a post reads like my 7 year old grand daughter's homework assignment... I tend to get a little leery about the author's attention to detail in more than just his/her grammar and spelling. But hey, maybe I'm just a judgmental SOB.
I don't think that's overly judgemental to be honest. I think it did read like something a kid had written and it shows a lot of carelessness on the authors part. Who knows what care (or lack of) is taken elsewhere?