Bungie experimented with it in Halo: Reach, then implemented it in D2. Honestly, I'm not too biffed about it. It [i]does[/i] make sense to have Bloom on Full-Auto weapons because obviously it would be [b]impossible[/b] to control every movement perfectly, but when you look at games like CS:GO, its clear that there isn't a [i]need[/i] for Bloom so much as the [u]PC version of the game is simply a Port from the Consoles.[/u]

As I said I'm not familiar with bloom, other than lighting on pc as a term or mechanic so I had to look this up. Apparently, and don't quote me on this, but the explanation given is that bloom is a strictly rng based hit system? It certainly looked that way in the video and explains why the shooting mechanics on console feel so off.

Basically. It adds a small amount of RNG to firing your weapon if you don't wait for your shots to realign.