Personally I found it just as annoying when posts like yours are in fonts that is not like the rest of the thread. It makes it stick out, and hurts my eyes. I usually skip those posts.To my mind what is much worse IS WHEN THEY TYPE LIKE THIS ..all screaming, psycho capital letters ..
Anyway, re your OP and original question asked, no I can't say that I have noticed such a thing.
Moreover, if anyone was fool enough to write to me in such terms, they would rapidly receive a response that would leave my views on such matters quite clear.