OK, here is what I think should be the standard definition of beginner. One who can't pass the level 4 elevator springs.
Here is the definition of beginner. A person just starting to learn a skill or take part in an activity.
There are people who have played this game for years who have not hit the killscreen. Allen Staal has played this game what? Over 6500 times. I would hardly call Allen a beginner. The truth is if I went to a bowling alley right now, and played their ultracade, and got a score of 300k if someone actually watched that game who is not in the community they would say "Wow you really know how to play that game". Like Robert Mruckzek says in the King of Kong "The average person will not pass the 4th level elevator stage."
Beginner is a term for those who are just starting out. Making the killscreen the bar to not be a beginner is a bar that's too high.
Sides that is making a very wide standard for beginner. The term loses it's meaning if you apply a standard like that. What I mean is if you say something like "Oh, that guy is a begginer." Well guess what you could mean anything from a person who can't get a score higher than 50,000 to a person who has a 750,000 point score. I would think you would agree that there is a huge difference between 50k to 750k. But since beginner is the lowest level when you use that type of descriptor it loses it's meaning.
I think these would be better terms.
Beginner: 1 to 100,000 points
Recreational player: 100,000 to 299,900 points
Intermediate player: 300,000 to 599,900 points
Expert player: 600,000 to Killscreen
Master player: Killscreen to 999,900 points
Senior Master player: 1,000,000 to 1,099,900 points
Grand Master player: 1,100,000 to 1,186,600 points
Best: 1,186,700 points