Funny and true, sad and on the money. But I think the point is every success makes you a target.This could be said about any talent you have, but it should only give you pause long enough to laugh it off and continue on with your work.
The remarkable thing is that the most vitriolic comments came at the expense of successful writers by others who were themselves successful. Which suggests the truth of Rochefoucauld's aphorism: " It is not enough to succeed. Others must fail."
Maybe the best measure of success is a host of enemies. To be sure, untouchable success comes from ignoring them all.