A long time member of our community passed suddenly a little more than a year ago. Her father appended her steam name with "Rest in peace." He arranged for an online memorial for her online friends and encouraged everyone to DM good memories to her accounts. Her account's sat there in my friends list, offline, ever since. It was a great way to honor her, I think she'd have loved it.
I just had the unsettling realization that, over time, our friends lists will literally become virtual graveyards.