Randomizing it within a list of people that meet the basic requirements ensures some users aren't displayed more often than others
But that's not the case right now, the same 30 users are always shown.
In that case all this will do is ensure those 30 users will get high trust rankings and everyone else will be left in the dust.
The trust depth is still set at 2. Those 30 people have other people in their trust lists.
Yes, but my point is that if those are the only 30 displayed they will be the ones getting funneled all of the new user trust (increasing their trust rating) and it will be an endless cycle of more people trusting them producing a huge rift, and basically just reproducing the default trust list in a slightly modified form.
That's maybe why it isn't good for newbies to choose this. You can and should add people you trust to your trust list.
And do/should newbies trust anyone?