Currently the system works like this:
Death - gold to your killer 0 - 300 1 - 274 2 - 220 3 - 176 4 - 140 5 - 112 6 - 100
What if we tuned these numbers instead so it's:
0 - 300 1 - 200 2 - 100 3 - 50
Obviously we could change these numbers a bit but I feel as if this is the best solution for snowballing since Riot doesn't want to tone down the damage.
The Ecdysiast1 votesThen you'd see a spike in performance for champions who can already feed and still just brainlessly push lanes. And no effect elsewhere.
Pendergast8911 votesKill gold is the way it is to prevent proxy strats being too rewarding.
in the past 
could afk behind enemy towers and although he would feed his butt of, he'd generate more gold than whoever came to kill him. This is unhealthy to have in the game for anyone, and the act of proxy farming at least one lane at a time must have HUGE risks involved.
General Esdeath 1 votesHe still can, the only difference is with the snowball we currently have, the top laner (assuming it's always the top laner killing him) can either get so tanky they can freeze the wave and free farm, or they get enough damage items they can TP bot for a double kill and snowball that lane.