Yeah, I understand what you're saying, and when put that way, it does sound creepy. I never pose as a cast member to get away with anything, and I NEVER do it around visitors or guests. I do have a couple of real name tags that are actually issued to cast members. One with my actual name, Anthony, and old name tags from when family members used to work there. I also have the unofficial ones you can buy on Ebay. The name tag doesn't go on until regular park operating hours are over with, and it just helps me to not get rushed out of the park as I take an EXTREMELY long time leaving. Again, I don't wear the name tag to break rules, as I said before, I don't want to say much about it and get myself (or others) in trouble, but I do have actual cast members as friends, by wearing the nametag I 'look the part' from a distance, and I can stay back and hang out for a while. Some of these people are area managers, and they don't mind. So, I don't see it as breaking any rules. It's not like i'm using the nametags to sneak backstage or anything.
When I do sneak a peek backstage, it has nothing to do with nametags.
If it wasn't safe, trust me, I wouldn't be doing it. The last thing I want to do is get in trouble and be kicked out of my favorite place on earth. So, that's it, i'm not saying anymore about this one.