it's pretty clear he was just saying he didn't want to mention his direction because of who he is. any encounter with zimmerman will be going up online and could endanger his safety. It's a perfectly plausible reason and makes 100% sense and that's what you can see directly from that context.
Case in point: this thread and the website in the link.
Usually it wouldn't be a bright idea to bring up who you are when you don't neccesarily know who will and who wont agree with your actions in a highly polarized country concerning yourself.
but instead you just saunter into this thread drooling all over the place going "hueheuhehe, douche, lol... magistrate, what a douche, lol"
You always get so emotional over Georgie, the douche.