Back by popular demand, the rules for challenging up remain the same except I removed the rule stating that a new player must follow the guidelines. I have updated the rule page to reflect it. It's rule number 5 and now reads:
The top 30 ranked players may only challenge 10 positions up; players ranked 31-60 may challenge 20 positions up; and players ranked 61 and below may challenge 30 positions up. This rule is at the discretion of the higher ranked player to invoke. They higher ranked player has the right to accept any match challenge regardless of the ranking of the lower ranked player.