Greetings, I don't like "|" precisely because it means "or" in many contexts. "Accept: text/html text/xml" has "or" semantics, and I'd prefer not to prompt people to wonder whether "Accept: text/html|xml" means the same thing. A similar but weaker argument would hold for "+". But it's not *that* big an issue for me. It's just the biggest one I could think of. 8-) MB