I've been playing records for 15 years and just started scratching for two reasons.
1- to challenge myself. Any monkey can learn to beat match. It's true, no "dj" is special because he can match beats and blend two records.
2- I bought turntables long ago with aspirations of scratching, and stopped trying because I got stuck in EDM.
No matter what anyone says, a dj is a dj is a dj, whether or not you can scratch. It's how you scratch that defines you. I have no identity yet because I'm still learning.
Oh yeah, an it's fun!