Before reading on, know that I am unaware if this was already suggested earlier in this thread as I did not read each and every one.
I believe that the 'Report Abuse' system should be more up to date, or modified nonetheless. I recently encountered a certain individual with a highly inappropriate name that he masked as something else. I took the correct measures and tried to report him under Offensive Language; however, I received an error message saying that it I am unable to report as O.L. unless the accused has recently spoken. Fortunately in my certain case, I was able to get him to speak. I am sure that there are many cases where they don't talk, and get away with it. You may say I could have reported for Player Harassment, but I didn't think that was as accurate as a report. It would help to at least open the option for offensive usernames.
Another suggestion along the lines of the 'Report Abuse' system would be to maybe give different examples of scenarios, and then list what you would report them as. I know this could help a lot of players, myself included.
If you've made it this far, thank you for taking the time to read my suggestion! I know you will do all you can to make it work out in someway and that's all that matters.
Cheers
06-Jul-2015 05:01:12