I don't buy that whole gametracker thing, prior to the gametracker database failure when our server got removed about a month ago, it was off of there for a hole week, the average attack strength did not change looking at it through our DDoS mitigation hosts graphs and I imagine we would be the first anyone would attack considering we were ranked 1st on the gametracker service prior the database failure and now still in the top 5.
Gametracker sends queries at random every 5-15 minutes at random, and never more then 5 at a time, this has never changed and cant be changed from outside sources.