Possible Clues:

• Post on Twitter
• Better to avoid beer -- it admits little communication
• Social media post is pretty fanatical at heart
• Something a bird or celebrity might do
• Communicate in 280 characters or less
• Message from over-sentimental time
• Maybe post minute in Times
• Post with a tag
• Square pot isn't finished on time - the messenger is responsible for it
• Sweetheart loses share in The Post