Yes they stack but multiple of the same type wont Gold + normal gives 300% but gold + gold wont give 400%
No. You can only win tokens during the rounds For the round dates and times, check the Crux Crusades thread by Kaw_comm
Because Nobs are more valuable than gold. You can only get em with rl money or by hitting the quests.
I'm not 100% sure what he means by "spy stuff", you'll have to personally ask him, I couldn't tell if this question was for him or to everyone since this is the "ask questions here" thread
Take Mo's Tavern for example. I gave ownership to an old Mochi alt. Once Mochi shut down the alt got reset, but he also still retains ownership.