That Facebook thing:

Facebook: like, don't like
Facebook is addictive.
(“You don’t have to state the painfully obvious, the merely obvious will do” – Hawkeye Pierce)

And like most abused substances, Facebook can be consumed responsibly…

Take alcohol (being the most typically abused substance):
It can serve as a great complement to a meal, an event or a social gathering – or it can be used as the emotional crutch that leads to substance abuse. How we use Facebook and other social media, has strong similarities to the above. Used with a PURPOSE, they’re pretty great…