Hey, good job!
I know that pivot is a fun program that really helps you learn the basics of animation and emulating motion. I've used it a lot myself. You're a very talented animator. Extremely talented. I don't count as pivot as a waste of time while animating, especially for people who take the program to its full potential. When you look at it, however, it's not at all a respectable program. You seem to spend a lot of time making sticks to just make effects and scenes, when in flash you can just draw them. Things like that are much less time consuming.
Also, Pivot tends to only focus on motions, and emulations. Animating needs more than twice that for you to actually show your potential. You need to learn how to do FBF, and many other skills that come with effortly drawing your animations like everyone else.
In short, you're an amazing animator. Don't waste your talent on Pivot getting Daily 4th when you can learn flash and get Front Page, and a spot in the top portal entries.
It's your choice.
:3