I can’t speak for Jeff, but I can say that reading this thread it doesn’t come across that he’s trying to mock or belittle.
As terms go, here in the UK ‘in a row’ is a much more commonly used term than consecutively. It’s used in all kinds of fields; we talk about seats in a row, days in a row, personally I would expect more people to know and use that term than to ever reach for consecutive. Both terms appear on the setting, so hopefully people will be able to grasp at least one of them - there aren’t many good alternatives, lest we be reduced to referring to successive or ensuing responses.
Either way, it appears as though you have your solution.
That’s fairly misleading, particularly when there’s no measure of time involved in that setting. Consecutive posts aren’t a rate limit - the setting exists to encourage people to think out their responses and minimise excessive thread bumps. As pointed out earlier the majority of communities don’t encourage such behavior, which is why the default is 3 but it can be overridden if needed.