I was just curious about this subject. Whenever you place a block in the spectre dimension it says, "This world tends to get reset time to time." Does it actually reset though? If so, why? I don't really see why there would be much of a problem with it, and it seems like it would be very valuable space. If it does then I, and many others, would be grateful if it was possible to have it not reset.
The message you get is just generated by a script. "If world does not equal blacklisted worlds send "X" message to client". If the dimension is not listed here then it won't reset. Info - Automatic Farmworld Resets | MineYourMind Community