Just to be awkward:

1) There is no consistent usage of the existing prefixis.
2) What happens when say an actor dies - does he get and OBIT or a BS OBIT?
3) I doubt that anyone who does not know how use this forum to look backward 2 or 3 days as was the case with JLH is likely to understand the use of the OBIT prefix.

Please don't get me wrong, I'm not knocking the suggestion - I for one could make use of it if it terms were agreed, and its usage was understood and applied consistently.

Jon