Gossip Girl was the first teen drama I ever watched. I was obsessed with it, and before the finale, I made a board of everyone Gossip Girl could be:

I came down to a couple conclusions: it could be Dorota, or Eric, or maybe Jenny. But Dan??? No way.
Like when he exposed that Serena was ~sort-of~ his sister through GG even though he'd been trying to trying to keep that from her:

Or when he posted that Serena had an STD.

And that she'd bought a pregnancy test, leading his family to freak?

ALSO, there were numerous times he reacted to Gossip Girl posts WITH ALARM AND SHOCK even though he was alone.
Like when he found out Nate and Jenny were an item on GG, and acted like he was just finding out about it — yes, Rufus was right there, but he didn't show anyone the post!
