i would say.. it just something or a reason for people to mingle or discuss.. just think.. if ur not an fan of mgr,sivaji,rajini,kamal etc etc.. or not a fan of vairamuthu,balakumaran etc etc.. or fan of chettinadu samaiyal, or etc etc or fan of siththi,selvi arasu or fan of etc etc. what would u talk.. sontha kathai and soga kathai only.. no way people can discuss personal happenings with one another so easily.. something in common.. its nice people do something with an interest.. when this interest crosses a limit.. naasama pochi.. everything has a limit pros and cons.. love hate also has a limit.. when u hate or love a person beyond limit its a hindrance for u.. if fans dont exist.. interest and discussions wont happen.. why would some one discuss on someone or something without any interest on it..