Interesting response to marketing

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This past year I've reached several missing-in-action sellers via Facebook.   I pay the $1 to make sure the message goes into their main message box.  50% don't reply. The other 50% write back.  A few have called.  But the best one was on Sunday where they replied to my message with the "Like" icon.  The entirety of the message was the thumbs-up.  No message, no contact info.  I don't even know what to do with that.