Can you write off IPR as R&D? You could probably massively over-inflate the value of the OO.org trademarks (and the copyrights). Donating then might be a financial mechanism, it dumps the trademarks but also prevents others from using them without having to use them yourself???

Oracle and Apache's accounts would show what's happening there.

This is a conspiracy theory, but perhaps MS paid them off to do it this way just to generate confusion.