I'll stop you right there. If you filled in the above with any answer in the affirmative, you need to back up a step and reconsider everything you're doing. In the past week alone there have been two reported cases of author stalking. In one case the author showed up at the reviewer's doorstep. That's scary enough and a situation that could have easily escalated badly. In the other, it actually did escalate, ending with the author in question allegedly assaulting the reviewer with a wine bottle.
To anyone showing any sympathy whatsoever to the writers in question: what the hell is wrong with you? There is no justification under any circumstances for this kind of behavior over a book review. Repeat after me, it's a freaking book review - that's it. Nobody beat up your child, ran over your pet, or smothered your frail old grandmother in her sleep. There is no cause for losing your shit over the fact that someone didn't like your book. Get over it.
Should you consider any other action, whether it be petty online revenge or taking your fight into the real world, I would highly recommend you reconsider your choice of careers (in the latter case, please seek help as well). By publishing your written work and putting it up for sale, you are guaranteed that someone will hate it. Hell, they might even hate you for writing it. There is no IF here. It's entirely a matter of WHEN.
There is simply no such thing as a universally beloved artist. If you can't handle that, do yourself and everyone else a favor and think twice before putting yourself in the public eye.
I don't care how bile-filled of a rant you receive, even if they despised your book from the very depths of their soul. There is only one response that is even remotely justified by anyone claiming to call themselves a professional in this industry: succeed despite them. That's it. You have a critic who loathes you? Move on, get better at what you do, and let them stew as you prove yourself the better person. In the end that is truly the sweetest revenge, and it's one in which nobody has to get hurt or fear for their safety.