Android 42_04
I think that Badge Collector has been mistakenly applied as an Idea Multiplier in the RE. Or it's descriptions should be changed. See snips.
In tree view (I have 315 badges) I can see I get:
Entropy efficiency x4.15x4.15 (Badge Booster and Badge Collector)
Idea Efficiency x4.15x4.15 (Side Simulator I and II)
Metabits and Knowledge Efficiency x4.15 (Event Explorer)
Just removing Badge Collector from the Idea Efficiency multiplier might make idea generation too slow.