I received an email from eBay today pointing out that I recently sent another eBay user my email through their messaging system. They told me not to do it again and did not take any actions against me.

Now here is my question: do they actually SPY on their users or did the guy I sent my email to report me? The thing is, we were considering doing a TRADE (it's not as if we can trade through eBay), but it didn't go through. Did he get ticked off because I changed my mind and report me? Now this guy is a really big seller and he was the one who first asked me for my contact information. If eBay was spying on that conversation, then he should have gotten a warning from them too, right? If he did not receive anything from them, then does that mean he reported me? What do you guys think? What are your experiences?
Thanks