API change: OnPlayerPlacingBlock / OnPlayerPlacedBlock

[xoft]

I don't think making up data that's not there is any good. What if it's a special-shaped block and the server "guesses" the face wrong? And what good is BLOCK_FACE_NONE if it's a constant value passed to the hook?

You're wanting the blockface param rather badly, can you explain the scenario you need it for?