When I get childish responses and trolls, I am gonna reply with whatever the hell I feel like.
If you heed any advice in this thread, heed this: Those childish responses you're talking about were people responding to you by saying whatever the hell they felt like. You're done with that now.
You need to learn to hear out uninformed nonsense and say exactly what you need to say in response to keep your job and your people and area working, not whatever you feel like. Tell a shop steward you're doing retapes because the company didn't hire enough hourlies and you'll find out how many grievance forms it takes to crush a human skull, and you will at some point find yourself in a conference call with your boss's boss's boss, who likely does not care for the inefficiency of free speech.
Don't be moved by people who don't understand your situation, because after the moment of their frustration has passed, your bosses remember what it was to be a pt sup and the unjust floggings they took; and if you respect the hourlies in your area even when they complain and cause problems and you continue to work for their benefit while not rolling over every time one has a tummy ache and spends a couple paid hours in the bathroom, they'll be less likely to make your job more difficult in the future and more likely to work harder for you. If you let the noise weigh you down, your job performance will suffer and the problems will pile up.
I also sense, and tell me if I'm wrong, that you view this new position as supervising subordinates. If the people in your area think you view them as subordinates, or that you were selected from among them because you were better than they were, they will do what they can to cut you down. Not that you certainly meant anything by it, but "I didn't want to spend my life as a loader making $9 an hour" doesn't sound respectful. Tell your loaders you're better at getting yelled at than building walls; it'll go a lot further toward building a good working relationship.