"Introduce a possibility to show how many votes were cast on a specific node."
That I agree with. But only after I have voted myself, or if I'm the author. It would make sense to know the interest a node has created. A node with +4 looks as if noone cared (well almost), when in reality the node may have been given 100 minus votes and 104 plus votes. I.e. a lot of interest. This would be very informative if nothing else so for the author of the node. "I wrote a node and people cared (or not)"
I'm not part of the Monastery developers, but I would be surpriced if this information is stored in the database. I guess that only the net 'reputation' is stored. Which would make it impossible to show the 'activity' on historical data.
Everything went worng, just as foreseen.