User blog comment:Sirebel/Mathematician Required - Apply Within/@comment-26829117-20170423130833/@comment-27673465-20170423134012

I wonder if every upgrade is 0.01 extra or something to help with 'meeting/exceeding' PR values. Lazy programming?

Then with enough upgrades an extra 0.1 could be applied at some point?

Sorry, raising more questions than answers :)