Thanks for the perspective.
Perhaps I should have qualified my OP a little more but your suggesting the top 25/30 in each category is precisely my thinking, I don't believe offering 1, 2 or 10 thousand players rankings is beneficial and thats without considering the overheads. What I actually meant was display the top 30'ish relative to the level they have achieved.
I'm new to this genre and have no experience with the mccodes HOF but if thats what it offers then offering something similar for GL seems logical.
Personally I don'y believe anyone will be complacent with their present position and elect to sit still, if they are enthusiastically playing then their level is going to increase no matter what, which will have the effect of them moving up the scale regardless. I can't see any situation where a serious player would be doing business on the basis of holding themselves back but having said that it takes all kinds and they should be a very small minority.
On the subject of individual players rankings, I am not seeing that in their profiles and I believe consideration should be given to including that at some point.