Eh...
I give you points for creativity. I've never seen an online flame war turn into a pokemon battle before. That being said, there's some things you could work on.
For example, the beginning portion of the movie, when it's just a chat room is pretty boring. If you were making jokes, I wasn't getting them. It just came off as uninteresting dialogue. You should either spice it up a bit or shorten it, because it doesn't hold one's attention for that long.
The fight itself was a bit better. It was kind of clever and sorta funny. I wish you had put more effort into animating the attacks and made it visually more interesting, but it was passable. The spam in particular I thought was a clever attack.
The ending needs some work though. If you hadn't clarified the punchline, I wouldn't have gotten it. I'd like to see that guy's head explode. That's the advantage of animation, you're able to depict things like that. You would have gotten the point across much more clearly by actually showing what you were talking about, rather than the indirect route you took.
Lastly, the little animation at the end with the guy bouncing the ball. It's kind of a lame loop, it feels like it should have a higher frame rate. On top of that, the shadow of the ball sometimes becomes the ball. I don't know how you didn't catch that one. A few more in-betweens would have been a bit impressive. Also, if you had put an end to the loop, having the character drop the ball at some point or something like that, it would have been far more interesting.
That being said, this submission shows little effort. Put in a bit more time and you'll make something more impressive. You show some creativity, particularly in the battle segment, but much of the rest of it feels tacked on and poorly made.