Not everyone is in a guild. I'd even say that the majority of low to mid-level players is without a guild. There are also high levels without a guild. Hidden guilds can't be seen either. And I sometimes went through the elites of small players I sent an add request, to see if they had other small players needing clan, too. Impossible now. Sure, you can also abuse Elite-Hopping to list small players for being affiliated with one or another player, but so far I know one person on MS who did something like this. Once. I think you corrected a "problem" here, which in turn will create more problems.