You know, when you ask for worker's thoughts on specific tasks so they can maybe be passed along to the TAs, and you feel you have to tell the workers to be "kind and polite", that tells me that you KNOW that the workers have every reason to NOT be "kind and polite"

So why doesn't CF do something about it?  Like punish the TAs for a change.  The TAs ARE the cause of everyone's misery.  It doesn't take a rocket scientist to see that.