One of the most important reason why people have multiple account is the fear of bring banned from the forum
Secondary, I learnt that some hunters in the forum focused  focus their main accounts in helping and contributeing
To the growth of the forum. This can be trance down to say that most most people having multiple account is
1. Bounty Huntering Purposes
2. For Scamming purposes
3. For Forum Growth
4. For Business purposes ( i.e Sell them off to make money )
5. Fear of being Banned while participating in Campaign