Cut it out, or I'll start swinging a ban hammer.
Like Axiom said, if you want to wear your old tags in an active reg, by all means, be stupid and do it, and you run the risk of being banned for impersonation etc.
Don't see why anyone would want to wear their old reg tags, especially in active regs. I get why people wear their old nostalgic tags such as Nr24 etc, but if your going to wear tags to potentially cause trouble, we'll just ban you.