haha !
I had made a similar Thread ages ago !
But Mods & Admins were Biased ! and they Said NO !! lol
Everyone at that time were just shoutinf ' why do we need more inbox size ?'
No its shit that they are contradicting their own words :p lol what a........
Refusing a idea isn't being biased
Increasing it too a insanely high number (100) just bloats the database unnecessarily. Its annoying but you should just delete all your PM's when your box fills up.