What happens if I don't provide ID to Coinbase?

As a cryptocurrency enthusiast, I'm curious about the repercussions of not providing identification to Coinbase, a leading cryptocurrency exchange. Could you elaborate on the potential consequences? I understand the need for security measures, but I'm also concerned about the privacy implications. Will I be limited in my trading activities? Will my account be suspended? And what are the long-term implications of not complying with these identity verification requirements? Your insights would be greatly appreciated.