I'm suspicious of that GDTPool always being number 102. As I understand it all the GDT members are paying into it so most of the Lisk payments do not get dispersed. What is happening to all that accumulated Lisk? Will it be paid out eventually? Must be hundreds of thousands by now.
The Lisk that GDT members pay to gdt_pool is paid out weekly to Gold Voters of the pool. When gdt_pool gets in the top 101, bronze and silver voters will also get payouts and Gold members' payouts should increase a bit too.