I normally try to be a little more eloquent than that.....but in this case TOD has it spot on....this, I'm sure is not a spur of the moment decision by PSZ to leave, it is surely a build up of all the ingratitude, moaning, immaturity and of course the physical attacks on the shard and all he has tried so hard to build up (and suceeded in doing so too!)
PSZ, I hope to hell it is possible in any way to persuade you to stay, take a short break and come back, or anything that will keep you connected to Demise. The huge majority of the shard hold you with th upmost respect and appreciate all the work all the Admin have done for the shard over the last 400+ days. If there is anything....and I mean anything that can be done to make you realize just how valued you are, let us know.
If you do actually go, I wish you health, happiness and success in everything you do in life (well, I wish you this if you stay too!), but I hope to hell that this isn't necessary.
Top man, who has helped so much in providing the top UO shard, the shard will be missing so much without you.