The very fact that so many people are commenting on  Bijay Kumar and his writing proves that people read him widely   . He has been at the top of Nepalese journalism for decades so it should be no surpise that he has close personal experiences with politicians and  he shares it with us. What is wrong with that.?
Do not forget that he made a very popular  series 'mero jindagi mero biswas, of unsung heroes of Nepal. 
Sadly, the best some people can do in life  with their petty little brain  is criticise others who are successful. Let them bark because that is what is their specialty. Otherwise there is a simple solution Do not read him if you do not like him.
National newspapers in Nepal have published so many of his artlcles as front page news. Perhaps that says someting.