Perhaps the abuse was just too widespread and too difficult to control. It may be hard for "good non-profits" to get their heads around this, but there's a dirty little secret: not all non-profits had clean hands in all their SL dealings.
("You're paying full price for your sim? Are you crazy? Let me show you how to save a fortune!") Perhaps it was bad enough to jeopardize whatever advantages LL was getting from the discounts.
But this is all speculation. It would be nice if LL could clarify the reasons behind the change.
Qie, I totally agree with you, and yes, it's all speculation, but it's the first thing that popped in my head as well. And if this is the case, it's just too much red tape the LL's would have to go through to figure out who's legit and who is not.. Not to mention other countries non-profit policies and procedures. *sighs* It's really a shame tho, that everyone has to suffer. But if this is one of the main reasons for making this move, my hands go up in the air for SL. Oh Well..