Recently in a literary group I am a part of on Facebook, an author shared how upset she was by a negative review.  It wasn't so much that the reader didn't like the piece - however it was apparent that they really hadn't read it, and furthermore declined to provide any sort of reasoning as to why the book was not one they'd recommend.  I saw the review, and it was a one line, childish statement by someone who I really thought should have kept that particular thought to themselves.

Remember when you're mother told you that if you didn't have anything nice to say, then don't say anything at all?  This was one of those moments. 

I would consider myself a fair reviewer - I read an entire book and will give you an honest response as to whether I liked it or not.  In both cases, I will tell you what I did/did not like about the piece and I do so in what I hope is a constructive manner.  Yes, I am a smartass sometimes - but I am never, ever needlessly or purposefully cruel.  I may have some expectations based on the blurb as to what the book is about and if they aren't met in my opinion, it's my job to relate why, but in a fashion that's constructive, not abusive.  If you think about it, reviewing a book is valuable for both the author AND the reader; it provides what you hope is good feedback to the author, and allows the reader to really define their tastes as well.  A good reviewer will want to get their point across in a professional manner; it reflects on themselves as well as any group they may be affiliated with.   A poorly constructed review is just as painful as a book that's not edited well - you lose the message among the delivery.  

I've seen where authors are so affected by such a review (or any negative review) that they make the mistake of engaging a reviewer in a "virtual shouting match".  This does neither party good but can certainly damage a reputation quickly and effectively.   I have also seen where a reader/reviewer has been asked to provide constructive criticism to the author as to what didn't work for them, which has in turn really worked towards the positive.  It allows the reader to provide insight as to what they felt could have been done differently which can be a very valuable took for the author.

Any type of creative endeavor is personal to the individual who's given it life and yes, there is a certain amount of sensitivity on their part when someone else's perspective doesn't align.  That being said, you know the old adage, "you can't please everyone all of the time" is really true.  You can't. Not ever.  So, over time you try to develop a thicker skin, and continue on doing what you love.  I believe that writing (as with any creative outlet) is an extension of self, and frankly, you should never apologize for being you.  Do you hope that an author continues to refine their craft as they progress in their career? Sure, so do they; otherwise they'll become stagnant and that's one thing they don't want to happen.  You hope as a reader, that you get to tag along with them for the amazing journey, and as a small measure of thanks let that person know how their story has affected you.