You don't need to learn them, just mouse over the flag. Plus those flags are pretty small.
This plays out on a lot of forums. The thing that bugs me is when some one answers a question from a poster who has no location info, it's not uncommon to get a complaint about presumptions. "That doesn't help, we don't have xxxx" is common. If they don't say where they are, I find it arrogant when they complain about help.