It isn’t the $20 is the most counterfeited. The $100 is second. However if you live outside of the US the $100 is somewhat more common so depending on where you live what you see might not match reality.
At least according to every search I can find.









The problem is people don’t want a focused community. They want a broad community so when they have a question they can ask and find an expert - but not so broad that the noise means they can’t follow anything. We do focused communities because the world (or even internet) has too many people and so the noise of all the discussions is too much. However that isn’t what we want.