Don't believe everything you hear. Some people make a sport of trolling others and then come up with stories.  Or they refer to old yt vids of some years ago, which ain't accurate anymore for the current state of the game. 

As far as i know centaurs was never a good place to get silver. Also went there myself with a couple a chars, like maegu, tamer and sorceress. Got a decent amount, but not billions no. 

Not sure if people still do it, but Aakman used to be the place for silver.