Be careful or you're gonna get bannedjust curious, be careful about what??? what am i doing that would deserve a ban?
As far as I can tell, nothing. If people are consistently cheating, then you are entitled to your right to the LIVE Services you pay for to use the Report feature for each individual cheating in each individual instance. I believe that he might be thinking that you are just reporting for the sake of reporting (which is not the case), which in that would be abusing the Report feature, which is a bannable offense, but we know you are not doing that.
Now there is the other possibility that he is warning you in the regards that the cheaters will wrongfully report you and abuse the report feature, which in that case, you have nothing to worry about as the LIVE Enforcement Team is pretty good at what they do. Basically if the cheaters do that and the enforcement team checks your history, and you have no red flags in each instance, they will just be digging themselves a hole instead.