Oh, gosh. Yes. Slightly different circumstances, though. I had the misfortune of giving critically negative reviews to two of the most popular best-selling books of all time, some years back. A lot of us writers came out and slammed the books for structure, lack of editing and craftsmanship. They made millions in book sales and both went to feature film series. I was unaware of the rabid fan base that backed these authors and titles. (This was on Youtube, btw). I paid the price by receiving multiple, what I would call "revenge reviews" on my books that nearly destroyed their star-rankings and ruined sales. It was still stalking.
I was in a flame war in a major writing group that dog-piled me and got personal in the critique of a romance novel I'd written. I got banned for fighting back. Then the relentless stalking began on FB and Twitter, and it was a destroy mission. Fortunately, I used the site supervisors to stop it because it wouldn't cease. I believed one of the stalkers was banned. This happened, even though I had long since apologized for my behavior and forgot about it.Â
I remember Hugh Howey being ripped to shreds in the same group. I came to his defense and the bullseyes landed on me. But I would do it all over again because the charges were so preposterous and cruel. Months later, stalkers found me and reminded me for supporting a self-published fool, and that I should never let it down.
People, any persons really, who disagree with you per race, politics, religion, creed, and lifestyle can and do retaliate against you at times. You can be the most non-caustic and peaceful person on this planet, but if someone perceives what you've written or said is directly opposed to them or thought of as a personal attack, no matter how untrue and misdirected, you can end up on the tail end of a firestorm of hatred and abuse.
It happens to every one of us, in turn, or at some time in our career. It hurts deeply and profoundly, and you wonder how could anyone be so cruel as to follow you everywhere and demean you while you are simply cohabiting peacefully with your site or group members.
With a memoir, you run the risk of not only using your real name and location, but possibly using real characters in your life's past that bear a striking resemblance to real people. Those people could very well identify themselves in print and start a manner of trouble and stalking. Notwithstanding, law suits, defamation, slander, etc, etc, . I agree with the above that a trad publisher could set up some barriers contract-wise and might be able to intercept and protect you. Yet I couldn't really advise you on what to do if you self-published and received this kind of backlash.
Caution. Subtlety. and perhaps a real non-traceable pen name might help you avoid, shall we say, any Imperial Entanglements.Â