Fortunately for you all, this site does not make any money
Because it does not depend on commercial backing, I can spend a lot of time on it when I'm in the mood, and step away from it when I need a break. As long as the site does not blow up or crash, it requires little maintenance. Even in the event of a total wipe-out, I keep archives of all content so data lost would be minimal.
It is more difficult emotionally than technically to keep a site up for year after year. People's lives are not static - they move, they take new jobs, they get into or drop away from hobbies, they get married or have kids. Any of these changes can impact their ability to create and maintain a site. Eventually, it would be wise of me to add moderators - not so much to control the site content, as to help maintain and grow the site. If you aren't careful, it becomes a bit of a grind day after day; especially dealing with the spam (which hopefully you all never see - or see very little of)