You beat me to this one...
First, this is creepy as hell. It shows the extent that facebook is monitoring its users to where it tracks everything you posted and to who and what your position was... (Privacy laws anyone?)
Next, this move is only to stifle people's views if they disagree with snopes.
You are correct; when China first announced this program, it was shocking to most freedom minded individuals but I do expect that leftists will applaud the move because they perceive the short term usefulness of opposing voices being shut down.