He does have some downvoted meta posts, but I didn't get the sense that he had a bad attitude. Here are the four worst ones:
http://meta.english.stackexchange.com/questions/709/i-propose-to-elect-by-3-quotas-each-per-one-thirds-contiguously-of-time-zones http://meta.english.stackexchange.com/questions/738/why-were-my-questions-on-english-meaning-usage-and-grammar-closed-and-deleted http://meta.english.stackexchange.com/questions/719/cant-copies-of-deleted-threads-be-emailed-to-authors http://meta.english.stackexchange.com/questions/726/how-would-you-feel-about-allowing-questions-in-foreign-…