I personally love a redemption arc, and I think that DT is one of the better characters on the show. She has shown herself able to learn independently and with very little support. What makes a character strong, IMHO, is an ability to recognize their own mistakes, something that was much more challenging for DT, who was cut off and isolated from any friendship, than it is for our other characters, who have the constant support of dozens of people who love them, and know that. With that run-on sentence out of the way, yes I forgive DT. She rose above the role she was cast in to become more than what anybody thought of her. Forgive is an understatement. I would gladly accept her as a friend long before Sunset Shimmer, who was and is just a powercrazy pony who was given everything a pony can receive, and threw it all away.