i have heard from people that not much people know how to beat towers. i wanted to ask this question, lets say, if someone knows how to beat a tower, should he create a guide on it? or, should he tell people that he knows and charge coins for telling them the strategy? or, should he show off by saying"i know how to beat the towers, but not tell anyone" or should he keep silent and keep it a secret?

I only know of one player that has beat the towers in quite a while and to be honest it took him quite a while to work out the guide for them (all trail and error) and in my opinion if you want to beat the towers figure out your self and keep it secret.This way it keeps the challenge open for others to try for them self.