That's just the way he always acts. Any sources that contradict his are immediately dismissed and if he can't come up with counter sources he will just hit you with anecdotal evidence that you can't address. Somewhere in the middle there will be a threat of muting and usually the last post or 2 are thinly veiled personal attacks. The guy has an encyclopedia worth of knowledge so it's interesting to read his posts but I've found that it's not worth the emotional effort to engage with him since the discussion always gets uncivil.I do find your tone to be condescending, and I don't like being spoken to like that. Maybe it's the tone of the internet, and you don't mean to do it, but you come off as very know-it-all. You basically told me to behave the way you like when you threatened to block/mute me again. If you feel like you need to block me beacuse I'm the type to address that directly, that's certainly your right.