Maybe a cultural thing? For me, "you're over thinking it" is a familiar/friendly way of expressing an idea, similar to how you would approach a friend. It was not intended to be dismissive.
you are right. it is a cultural thing. that being said, the advice is sound. the internet is a mishmash of cultures :)
if i would bring my culture to the internet, everyone would think i'm troll or horrible person. just because ppl from my culture are a bit direct and cynical :D if you'd like people to respect and take into account your culture it's good to do vice versa.
