Hmm, some seem to include younger players, who in my experience are usually but not always worse at the game. Other players listed include some who just don't care to be good at the game or seem to show very little improvement over time, either case in spite of the fact that they've played many years. For example, we know there are several people I've had try trem once, only to find out they are miserably hopeless at accomplishing any in-game objectives. Naturally they are worse than any player listed, but more excusable due to low interest or experience, and therefore omitted from lists. Also, most lists seem to include at least a couple instances of just not liking the person, and thus lesser appreciating their worth as a player.