I read many thread where a person said they have a spawner, refer to this thread are they saying its possible to obtain spawners? is it possible to obtain monster spawners legitimately on survival? -Pateraterick
It is not possible. I didn't look at the thread, but more than likely, the person has found a spawner and set it up as a mob farm, rather than actually possessing a spawner
In survivor on EMC, spawners must be found and setup. They cannot be saved or reloacted even with silk touch picaxes. That other thread is about a guy wanting to pay to RENT a XP farm of someone else. I think he's offering 2K rupees a week.
Spawners are unabled to be moved by pistons / sticky pistons. If tried to do so, nothing interesting happens.