Nuther good reason for Reflector
I named a business object User. It was UserConfig, but I liked the cleaner “User” name. It didn't appear in a basic Ctrl-Shift intellisense check, so I thought I was okay.
Some days later I get a compile error with “User” in some namespaces not having a certain property. Doing a search in Reflector showed me the appearance of “User” in several namespaces.
I don't want to type the full namespace designation whenever I use it, so I'll go with...hm...UserInfo. Let me check Reflector on that.