Re: Which begs the question
I grew up in the UK hearing "begging the question" in the sense that something immediately demanded an obvious question be asked. So did most people grow up with that meaning around them. It's not like a word such as "whale" where it has a definition independent of common meaning and if someone calls a shark a whale you can correct them. It's a phrase. You have a different and far less intuitive understanding of the phrase which may or may not be older, but is not authoritative - because it's a phrase.
The only phrase that can be said to be inherently wrong is "I could care less" unless that's actually what someone intends to convey which it seldom is. Other than that I get tired of somebody popping up whenever other people are using a common phrase in the way both they and the listener are used to using it and attempting to tell them they're wrong and they should use the newcomer's definition. Really, such behaviour just begs the question of what they actually want by doing this, my answer to which is that they just like pretending they know more than other people.
TL;DR: Pedant Fail.