While Andrew's last time on may have been the 14th he has posted much more in the forum than either Lord Traldan or IrishDem. IrishDem has only posted three sentences in the Fantasy Elections forum since New Years and Traldhan is on for a bit and then doesn't come back for a while. She's only been on twice, on the 5th and the 15th, in January.
In Irish's defense, it was his senate seat that was up for election. When so many of Atlasia's government officials resign, they often vote for their replacement, and then fade away. I'm sure for Irish, being on the forums just didn't seem fun anymore, considering the manner in which he left.