Calling someone a fascist for that is obviously a bit OTT but you’ve ignored the “do weird shit” part of the response so it wasn’t literally what you said. Taking the full response into account you can easily interpret it as “I don’t bother with mental maths but use a calculator instead, anyone who isn’t like me is weird as shit”

That is a bit thought police-y

I use them as well, never had any issues.

They have a useful API I leverage to manage DNS entries with scripts and cron jobs which is probably fairly standard these days but seemed to be a little harder to find when I first moved to them.