When a writer gives you a hand up you are very thankful. Generally you don't get too many of these from other writers who are very busy with their own careers and writing. Maybe they don't like your work. Maybe they dont' give blurbs. Tobias Wolfe was very nice and said he was swamped with books as did Tom Poratta. I understand. Bestelling novelist David Liss did review my book and gave it a great one,http://www.amazon.com/review/R8NJQ80GXYO3O/ref=cm_cr_rdp_perm. You always have to be appreciative to the writer who does give you a hand up. It is a long trecherous road and authors are a cautious bunch. The rug can be pulled at any time and many a writer has served as a cautionary tale. So when a writer goes out a limb and says they think what you have written is great then you can only hope that you will be able to do the same for somone some day.