Honestly, I'm not sure I how to ask, or even if it's indeed a question. A few months ago, I was searching for some info on MathSE and I found an answer by a user interesting, if I remember correctly. Either way, the important thing was that after visiting the profile page, and searching a bit about him on the internet, I found out that he had killed himself. I checked the date the user was last seen, and it was a few days, or something, just before his death. I'm not sure anymore, but I think he was a computer science expert or something... I think it may have been this guy Since then, I haven't been able to shake the feeling that we should do something, if possible, about some of our users that have died. I don't know, but it just doesn't seem right not even trying to do something about it...
for a site like ours, a formal policy or process around memorializing the accounts of the deceased might do more harm than good.
This was written specifically in the context of Aaron Swartz's suicide. His SE accounts remain intact; naturally there was some sympathy voting following the news of his death, but otherwise they look like any other account.
This is an example of how they commemorate deceased editors on Wikipedia. Of course, only notable editors will end up being commemorated this way.