I noticed that if you place a totem and an emitter inside of walls they do not decay..
Already discussed. See here (http://knucklecracker.com/forums/index.php?topic=907.msg18312#msg18312)
NO, IT IS NOT AN EMITTER INSIDE A WALL, IT IS N EMITTER SURROUNDED BY WALLS
You are sadly mistaken. I suspect you were expecting fast decay and didn't wait to see whether the walls decay or not.
Here is a test map with two similar emitters and only one has a totem on top of it. Spend some time futzing around - build a few things and so on. Notice that the walls around both emitters darken at the same rate.
Then next time learn to do your own control tests to prove or disprove a theory before making statements about things not working.
Edit: Hint: it takes about 6:45 for the walls to decay.
(http://i38.tinypic.com/10gbllu.jpg)
OOPS, SORRY
*LOCKED*