Saddest moment? When one of my favorite servers that I was a GM at closed due to financial problem, its Chu!RO, sadly. I was able to search for a server like it, but it died as well, due to inactive staff and lack of players and that's WarfareRO.
Even if its almost 2 years Chu!RO closed down, I'm still in hopes that the owner will reopen it again, but he's having a good life after he got his new job a year ago.