I love to read. My comments are always honest. If you can't take the honesty you really should find a different hobby, you'll never survive public opinion if you can't handle my type of Truth. 

I am many things but a liar I am not. If I don't like your book I will tell you the things I consider wrong, that doesn't make your book trash.. it is simply suggestions to better your writing. Take the critism or don't, ultimately it is your choice.