I wonder whether it is because I started off as a fanfic writer back in the days when fanfics were of better quality than anything commercial (and when I was too young to match the big names of the fanfic community) and when we called "ships" pairings (and pairing-wars were real and bloody). I've had my share of real abuse. In fact, I would say I went through all the categories of abuse imaginable. From getting passive-aggressive criticism about how everything, from grammar to style, was an insult to the fandom I was writing for and to the characters I was using, to downright being dragged into pairing-wars.
And how did I get rid of all that negativity? I answered EACH and EVERY comment kindly and extensively. I was known for my reply-novels. I could easily hit 2 000 words for a reply (I could also write chapters that were 37 000 words long - no kidding, I have proofs of that!). And I always kept a kind tone. People who insulted me I commended for their love of a pairing or of a job done well and also explained why I did not appreciate the tone or why I couldn't live up to their expectations, people who just demanded for updates I informed about things in my life that made me slow down with updates. In the end, I became known as the one fanfic-writer who replied to each and every comment, who sent personalized thank-you notes to new followers and favorites (did everyone reply back? No - but I made some lifelong friends like that) and all of a sudden all the "update fast", "you're garbage", "hah, that pairing never had a chance to exist" (I am being polite here - no need to tell you just how vulgar the insults I would get were) got replaced with long, thoughtful comments. And fans started talking about me too.
More importantly, the relationship I developed with my readers, the hours and hours and hours that it took me to write my replies, paid off. They started caring about ME. Not just about their pleasure. About MY work. My readership grew and grew. But not negatively. The mean comments became inexistent (and I am telling you, writing fanfics for Naruto, especially for non-canon pairings, especially for popular characters can be bloody as heck). So did the time that replying to comments took up. And I never regretted it. Not once. And never will. That is my brand. I am the Replier.
So, let me tell you something. Writing has become industrialized. The readers who read one of your stories, might not read your next story. Why would they? Your next story might not fit their likes. To them, the silent author is nothing but a worker in a Chinese factory, there to produce a product they will CONSUME. And when that product becomes obsolete in any way, they will buy the newer version of another product.
The reason Apple became a product that has deeply loyal buyers who come back and buy Apple over and over again is because it took the time to build its brand (besides having original products and being at the forefront of innovation). It has a personality. It is known for something that transcends the product. It is known for Steve Jobs, it is known for being artsy and edgy.
What is YOUR brand that transcends the fact you produce a consumption goods?! What are YOU known for?! For being a silent author? Millions of those out there. Your popularity of today does not mean that you be popular tomorrow. Ask great webcomic artists who faded after amazing popularity (I am looking at you, TUTU!). Ask great webnovel authors who had it all, from comic adaptations to drama adaptations, and were then never to be heard of again.
And while you are hiding from the pain of criticism and insults in the writing world, you are still not avoiding them in real life. People are going to be monstrous towards you. Absolutely abject. And there is nothing you will be able to do against it (unfortunately).