[nacs]

It is possible they do this.

They may not have done it at launch but as more and more people play and they collect the stats for each seed, I'm sure they can track how easy / difficult each seed is and send the seeds that they wish to do whatever objective they have.

Most of these F2P play games collect and analyze an insane amount of player activity and have sophisticated analytics that they then analyze to make the game more addictive or to increase player spending.

[bcjordan]

You could have a few people collude to collect a number of incoming seeds on the same level and compare for non-random seeming collisions.