I am really sad that this keeps coming up.
Inactive or not - these are our prints - and the rarity of them is what helps them hold value outside of our emotional attachments.
Regardless if I log on every day or once a year - these are mine. I have invested my time and my money and whether I had these prints in my house, or a digital closet, they are mine.
No one has any right to tell me how often I have to come visit my prints in order to keep them.
I know there are sets that are sold out - and that is how it goes. You can try to trade for them - or admire from afar - but you cannot just decide what is an allowable time for me to keep my property.
Inactive accounts are just that - inactive - and that is their choice.
What neonmob could do is allow users to set up something like facebook has - that in the event of your confirmed passing - that you could will your account to another.