On the Trainer Card, it says “Score”. What is this?

Question

I've been playing Platinum and on my Trainer Card, it says “Score”. What is it for and how do you raise it?

Answer 1

http://bulbapedia.bulbagarden.net/wiki/Trainer_card_(game)

In Generations III and IV, the Trainer Card also carries the Trainer's score. A Trainer's score offers no specific purpose in the game and appears to be only aesthetic. The score begins at zero and increases every time a score-altering event occurs.

Event Change
Berry is picked +1
Battled against a wild Pokémon +2
Battled against a Pokémon Trainer +3
Pokémon Egg is hatched +7
Pokémon is traded +10
Pokémon is evolved +20
Flag is obtained in the Underground +34