I'm afraid I will have to disagree, though it depends on what kinds of plants are meant to be in the pot. Star moss grows extremely quickly nad can actually choke out smaller CPs like sundews, bladderworts, and such, and will end up looking quite horrible as the spore stalks stick up and end up being the only thing left of the plant, a bunch of ugly green sticks (spoken from experience). With larger plants like Sarracenia and Nepenthes, no, star moss is not a problem, but it can easily spread to pots with smaller plants if any are nearby.