After reading the following article, I realized that I too have witnessed social media sharing icons on many a website never gain any traction. It is as if they are completely ignored. I went on and removed them on this website moments ago.
As someone mentions in the article’s comments section, there are certain instances where social sharing buttons are a good idea, and you should definitely make them look nice and work well when they are useful. However, sticking them at the end of every blog post just because some SEO-grading web tool says you should is not necessarily a good plan, based on the evidence.
Keep in mind, I’m referring to sharing icons, not follow-me icons (those which take visitors to your social media page).