(Other than totally distracting you, because that’s obvious!)
1 Teaching you to act like someone you aren’t to attract more readers/attention.
2. Turning you into a “plz buy my book” robot.
3. Creating false expectations of what “being a writer” is actually like.
4. Taking up valuable writing time.
5. Probably well-meaning people offering bad writing advice.
6. And bad publishing advice.
7. Writing prompts that aren’t actually helping you focus on a specific task.
8. Overlading you with ideas — that’s not always a good thing, it turns out.
9. Zapping your much-needed creative energy (if you spend social media time creating more things).
10. Let’s be honest: People promoting their books, which makes you want to buy and read like 500 more books.
11. Forcing you to talk about your ideas/connect with other writers when you aren’t ready/comfortable.
12. Encouraging you not to experience things in the real world — something all writers definitely need to do more!
Meg is the creator of Novelty Revisions, dedicated to helping writers put their ideas into words. She is a staff writer with The Cheat Sheet, a freelance editor and writer, and a 10-time NaNoWriMo winner. Follow Meg on Twitter for tweets about writing, food and nerdy things.
Meg Dowell Writes 
These are great insights. I wonder what all the great writers of years gone by would think about social media. They would probably hate it.
One must stay connected with the real world to be an effective writer. I am not a social media junkie, with no desire to be on any of those sites.