at the moment comments and subplebbits keep updating forever, and feeds never get garbage collected, which is especially bad for nested replies feeds.
think of how to stop updating comments / subplebbits:
- if the user leaves the post page, and doesn't have subscriptions / notifications, can stop updating after 1h (high probability of coming back within the hour)
- if the user leaves a feed, can stop updating after 1h (high probability of coming back within the hour)
- to achieve this, must know when the user leaves a thread, not sure if possible to know when a hook unmounts completely
at the moment comments and subplebbits keep updating forever, and feeds never get garbage collected, which is especially bad for nested replies feeds.
think of how to stop updating comments / subplebbits: