Absolutely this. I mean, you should probably just avoid using social media altogether, since all it is good for is mining your information to sell to third parties and negatively impacting on your mental health. If you absolutely have to use it, then it should be with an email completely separate from all things crypto related. Why would you want every exchange, ICO, airdrop, bounty, whatever being able to link your online crypto activities to your real identity? And why would you want everyone you connect with on social media to know the email you use to log in to crypto accounts? That is terrible for both privacy and security.