Because Johnson is a better overall fighter in the last five years than he was in 1999-2000. Some fighters (albeit not most) are better in their mid-30s than they were in the so-called "prime" years. Johnson is a tough SOB. He's also better at LHW than SMW.
You still never answered the question. Name one fighter that Kessler actually beat that is on the level of Hopkins, Johnson, or Dawson.
my god you're dumb. 1. lacy-tsypko was 10 rounds, not 12. did you have tsypko ahead because you have him 2 rounds at the end that didnt happen? if you did, that's not how you score a fight. rounds actually have to happen for you to score them. 2. inkin would get torn up against kessler. so would tsypko. 3. hopkins would be harder for kessler than johnson. b-hop is still a master and still great defensively. you simply dont think highly of american fighters. it's obvious.