Sure some have committed what is considered treason in Atlasia, or have had sock accounts, but Napoleon and SirNick have as well in the past made valuable and worthwhile contributions to this game, and deserve a second chance.
Napoleon ain't coming back because he was a sock of a banned poster. SirNick, well, committed something what could be considered the closest equivalent of terrorism as far as the game is concerned. Those two are extreme cases. Snowstalker, for example, was far from such an extreme cases, and neither are Turkisblau and Ebowed.