[Groxx]

Also consistency. I personally hate entries appearing and disappearing (e.g. "copy clean link"), I would much rather have a stable UI with disabled elements if something is sometimes relevant to invisible context (like href attributes).

Otherwise you get "where is X? It was here yesterday!" issues, and those are practically impossible to figure out if you don't already know why it behaves that way. At least a disabled entry tells you "this exists, it just isn't applicable" rather than "lol what? maybe we removed it".