No one likes an arrogant, self-absorbed, asshole (except people like me,oddly enough). Saying thanks is a quick, easy way to connect with new followers or people who enjoyed a post.
Some people think saying thanks for retweets clutters up the Twitter stream with noise. I disagree. Everything on Twitter is noise to someone, so if you bother them, they were probably angry to begin with.
Saying thanks, whether you do it publicly or privately, shows gratitude and humility. You aren’t any better than your fans, and without them reading your posts and clicking your share buttons, where would you be today?
Reading blogs takes time. Time people could spend with friends, reading books, or making the world a better place. Appreciate the time they spent reading your blog. Shoot them an @ reply or a DM with your gratitude.
Anyone who doesn’t like you saying “Thank you” is a hater, and you didn’t need them anyways.