Yeah, I did mention the "Donkey Kong generations".
Personally, the best definition of these would be:
1th generation: Billy Mitchell, Steve Wiebe, Steve Sanders, Brian Kuh, Tim Sczerby and some others players from back in the day. The "1st" generation are the ones that played Donkey Kong on a "competitive" level from when the game came out, which is 1981, up to the movie King Of Kong, which is 2006.
Even if this 1st generation lasted 26 years, it's still one generation, since the high score didn't really progress during that time, and there wasn't any "new" people that started playing that game, and the strategy didn't really evolve. The first generation uses "basics" Donkey Kong knowledge and gameplay, without making any progress in the strategies involved. However, the rivalty between Billy and Steve in King of Kong made the transition between the 1st and 2nd generation, with the start of progression of scores, and the start of strategy developping (mostly with some point pressing).
2th generation: These are the players that started playing after King of Kong in a COMPETITION level (even if you started playing back in 1980's and restarted playing seriously after KoK, you're still in the 2nd generation, since you started playing in a competition level after KoK). The start of the 2nd generation was mainly made by Dean Saglio and Ross Benziger. I know that some other people (like Ben Falls) also started pretty much at the same time as Dean and Ross, but I consider Dean and Ross only the start of the 2nd generation because this 2nd generation is also characterized by the start of point pressing knowledge/technique.
The 1st generation was the "kill-screen" generation, and the beginning of point pressing knowledge. And the 2nd generation is the real progress of point pressing knowledge, as well as the post-King of Kong players DURING that transition period of point pressing evolution.
2nd generation players: Dean, Ross, Hank, Vincent, Ben, Dave, Mark, etc. These are the players that started playing Donkey Kong during the evolution of point pressing technique, and during the evolution of high scores.
3rd generation: These are the players that started playing slightly before and/or after the first Kong Off back in march 2011. Why? Because from 2007, to beginning of 2011 was the 2nd generation, since it's mainly during that time that players started playing after watching King of Kong, and it's during that time that people were making progress with point pressing technique/knowledge, and it's during that time that maximum point pressing technique reached the top of the knowledge.
The 3rd generation are the players that don't even need to discover any more knowledge about point pressing/how to reach a kill screen/etc, because between 2007 to 2011, all the Donkey Kong knowledge have pretty much been found. The 3rd generation only need to put into application the knowledge the 2nd generation discovered.
The 3rd generation didn't start because of King of Kong years, but at the Kong Off's year. The 3rd generation started in the competitive environment of the first/second Kong Off, instead of being post-King of Kong. King of Kong obviously inspired the 3rd generation to start playing, but they mainly started since/because of the competitive environment of Kong Off's.
So, to make a recapitulation:
1st Generation (1981 to 2006): Billy Mitchell, Steve Wiebe, Steve Sanders, Tim Sczerby, Brian Kuh
- Basic knowledge of Donkey Kong to reach a kill screen/1m
- The pioneers of Donkey Kong that started playing this game since 1981, to 2006, before Donkey Kong started to regain popularity
- No real competition was involved (Billy and Steve started the transition of the 1st generation to the 2nd generation in King of Kong)
2nd generation (2007 to 2011): Dean Saglio, Ross Benziger, Hank Chien, Vincent Lemay, Dave Mccrary, Benjamin Falls, Mark (etc)
- Started right after King of Kong (and because of KoK)
- Starting of the point pressing strategies development
- Starting of the real Donkey Kong high score progression until it reach a "near" maximum we now know of
3rd generation (2011 up to now): Jeff Willms (I would put him in generation 2.5 though), Robbie Lakeman, Allen Staal, Mike Groesy, Steve Wiltshire, Mitchell, etc, etc, etc
- Started right before/during/after the 1st/2nd Kong Off. They started during the competitive moment of Donkey Kong (with Kong Off's), unlike the 2nd generation that started after King of Kong.
-They started when pretty much all the theory behind Donkey Kong/point pressing/kill screen technique have been discovered. They don't need to discover anything anymore, just need to put into application what people from the *1st* and 2nd generation have found.