I graduate from college next month. Should I go around to all the bitches who were mean and rude to me and tell them off on the last day?

No, you are a college graduate and should be smarter than that. It is a time to move on and celebrate with people who enjoy your company. Congratulations!!

No. I thought about doing that when I left school, but then I realised that I'm better than that. So are you.

In truth it would be pointless because these people were barely a blip on the radar. It was only about 6 months ago and I've already forgotten most of their names.

Let it go. It's pointless.

Don't bother with them, just be happy and celebrate.

You could, but what do you hope to accomplish? You could end up looking foolish, as people have a tendency to walk away from people who want to stand there and make a scene.
You say they were rude to you, but this may just be your own perception. Ask yourself honestly, were they rude because of an inappropriate approach?
Communication is easily misinterpreted, and I think it would be best to put it behind you. The fact that you've held onto it for this long says something about you. Think about it, ok?
Anyway, the best revenge is living well.
Good luck!

Would that build your character? Would it make you a better person.

Let it slide. Most of those women will have three kids and be 25 pound heavier in ten years. Time is revenge enough.

No.

Just be the bigger man and ignore them.

I'm sorry! I don't see the "association"! What does your degree got to do with your relationship/or lack thereof with the "mean and rude women" you have encountered!?

Sure why not? Remember those bitches might some day be in charge of hiring you or be your supervisor so keep that in mind :0 Congratulations on your hard work