cubflyer,
The "stand-closed" NOTAM is an interesting one, where a degree of 'reasonableness' needs to be applied.
If the stand is the only one that can accept a B767 (for example) then it is quite right to NOTAM it unavailable.
(There is a reference for this, where an operator supposedly would have changed the aircraft type had they known the only B767 stand was U/S at destination - allegedly)
If it is one of many that can accept a B767 (for example) then it is an operational matter, and not safety critical - therefore NOTAM isn't the right way to distribute that info. (Just the easiest way)
It will take a lot of effort and discussion to stop the originators NOTAMing everything, but our point isn't that it's easy, but that it's prudent.