I probably didn't get some part of the rulings correctly but it seems to me that there is an interaction problem with 2 of the mini-expansions in Carcassonne. The problem seems to be the following:
Adding the mini-expansion "The Robbers" allows you to put a robber on the scoreboard and whenever a player moves a Meeple that is on the same square as your robber, you then get to steal points.
Adding the "The Messages" mini-expansion, gives you a second Meeple on the scoreboard which allows and allows you to move either one of the two when you score points.
The problem: Once you have the robber on the board, no one will ever move a Meeple that has the robber on the same square as a Meeple. They will always move the other Meeple as to not give any points to a stealing player thus rendering the robber completely useless.
How do you guys deal with this? Or am I not getting something?