But it's rather hard to catch someone boosting, don't you think? It would require spectating several games with those people. If someone gets 2,000 points, then it's 100 points for killing them, plus an extra 20. (10%)
With the method that I devised using the proposed system, assuming both people start with exactly 1,000 points, people would go from 1000 to 1050, then 1107, and the intervals would continue to increase. I'm too lazy to do the exact math, but once you hit 10k+ points, it's just absurd.