Respectfully, the best way to answer that has to do with your preferred method of getting your point across. It's frequently along the lines of 'that would be a great analysis, if it were true', or 'that's silly', or 'that's ridiculous', (if I had a nickel for every time you said that someone's opinion is "silly" or "ridiculous", I'd be a rich man) or 'wrong!', or 'that's absurd', or words like that, and you'll go on for page after page doing that. I again, respectfully say that if you asked others, they might agree that it comes across as (at a minimum) talking down. That's just my humble opinion, and you probably don't even realize you do it. However, while you don't always do it, you do it with a fair amount of regularity. Do I care that you do it? Not particularly, but since you said you're not sure why it's talking down, I'm just answering. I'm sure I do plenty of that too, but try my best not to do so. No hard feelings. Just an observation. I sense I'm not alone in this observation.