Should we be incentivized to camp bosses and not run to wars after each kill?

One of my proudest moments in rs was when I got to the point that I could stay at Greg for an entire hour without banking. Sure I went through an entire yak plus a unicorn, but still!

I know a lot of bosses are now designed with the expectation that you will bank at wars after each kill, but I am nostalgic for the time where you tried to stay for multiple kills. I not miss running back to rax hive after each kill…

Would gaining a couple percent more damage, or loot chance per kill without leaving the area be a good middle ground? Something that would make bringing a yak of potions and food more valuable than a kalg? Or would it just make the rich get richer?