Koz knows how attractive social media can be.  It can be validating and fun.  But there are a lot of pitfalls as well.

Doesn't it sometimes seem fake?  Instagram filters can't fake happiness.  Facebook can't help you be happy if you're not.

Even though "likes" or re tweets on Twitter can provide some immediate satisfaction, it's not a substitute for real life happiness.

Koz recommends this self assessment:  Why are you posting?  Are you doing it for the high?  If you do that too often, you can become addicted to it.  Our brains are not set up to get so many rewards for doing so little.