Makes kills worth less gold
Farming has become secondary, when it used to be completely core to the game... for like 7 seasons~~
If kills were say worth 100g less, than it would equate to a difference of 5 less farm. This would take the value of kills, with no prior deaths or kills down to 200g, with the other types of kill gold reduced accordingly.
This would really discourage the 13 kills at 6 minutes into the game complex, and open the game back up to strategy and good laning capabilities. Not mindless, endless ganking and attempted slaughter of a lane.