I can understand why they won't tell you what you said, or said to who. Just like the GM said, if you found out that information, people could potentially go back and harass the person who put in the report. For example, if you said something that was harassing somebody, "Man derp nerd scurb tier!!", and then you in turn got upset over the report, you could go back and find the person and then harass them more out of anger. Heck, even saying something minor and just slightly offending somebody, saying "I don't like gay people" could possibly result in a report if you say it wrong, and again, same thing applies, once you remember what the statement is, its easy to put a name to it. I'd just take it with a grain of salt, and try or pretend to be more civil, cause I doubt the report was made just because, the GM's do go back and read chat logs...