[ggambetta]

> come up with their own personal backronym (like "ergo" or "example given").

I'm not a native English speaker, and I've never studied Latin, but I do have access to Wikipedia, Google, and dictionaries, and a policy of not using words I don't understand. If you come across something you don't understand, there really is no excuse for making something up instead of looking it up. It wouldn't be difficult to avoid horrors like "per say" or "segway".

[pluma]

You severely overestimate the eagerness of the vast majority of people in the vast majority of situations.

Also, if when learning English you didn't use any words you didn't perfectly understand, you are most certainly in the minority.