Nowadays, Amazon's algorithms for visibility have made reviews into a commodity, and since I have a couple of books out with my name on the covers, I abstain from reading reviews.
Not reviews of my books because neither my ego nor my self-loathing are developed enough to take that hit directly.
Not reviews of my friends' books because I get all angry and defensive and chupacabra, and it's on someone else's behalf, which makes the fury feel righteous.
Not reviews of books that are doing really well in my genre because all my attempts to replicate the success of those books have ended in manuscripts sacrificed to the dark gods of Why Even.
Not reviews of books that are clearly not selling well because, dude, someone put effort into typing all those words and then made the (foolish?) decision to go ahead and share the resultant opus. With everyone. For money. That's... kind of precious. Definitely brave. I don't want reviews to spoil that for me.
Nope, instead of putting my eyeballs on book reviews, I have a couple of super-kind friends who screen them for me. They cut and paste the reviews of my books that I'm allowed to read, send them to me, and then I print them out and frame them and ... well, they make me happy. Intensely, tearfully, gratefully happy.
Now, this isn't a foolproof system, so if you've reviewed a book of mine favorably and I haven't sent you chocolates or gifs of people hugging, feel free to message me. You really want this gif-storm. If you've reviewed unfavorably, I don't know about it but I will tell you this:
THANK YOU.