Nobody here cares what happened between you and the other forummer. What you need to do if you are a man is to let yourself grow up and put whatever bad experiences behind you and move on with your own life.
However, if you let this be a permanent chip on your shoulder and have it fester then you are doing yourself no favours, but make no mistake, no one here owes you anything to care if you self-destruct.
However, if you decide to make enemies of Singaporeans here, you can be assured that it will be reciprocated in full.
The decision is yours to make a matured decision.
