Because there's just too many folks in India who follow cricket and follow it with passion.
The trolling of Vaughan's comments about the pitch, has been pretty rough in these past few days. But you guys can take heart from the fact that there were lots of trolls on Tim Paine after today's win by India, and the trolls went back to the SCG test where Paine sledged Ashwin "See you at the Gabba mate... your own team mates dont like you... etc etc etc".
Many Indian fans love to troll/meme people who pass out controversial stuff against Indian players. And their memories are longer because they just have too much of time on their hands for cricket.
Fair play. He seems to take it well, but it also seems to be everything he posts