Anti-Farming
As the chance to find rarer items goes up the chance to find less rare items goes down maybe? so the more magic find you have the higher quality items drop more frequently but lower quality might have less of a chance? i dunno just speculating
edit: sry didn’t really read your post mine doesn’t have much to do with it. so bump
I spent 2 sessions farming spiders outside LA for a good 15 minutes each time to get spider venom which was a huge bottleneck in my crafting at one point. I did notice after a while the drop rates on it would get less and less over time. I don’t think its a bad thing but it would be curious to know how it works so as to not waste time. Like how long would I need to wait before it gets reset and that kind of thing.
They aren’t going to explain how it works. Doing so would only provide a work around for bot makers.
Its a bad system that needs to be thought out.