All you need are opponents who agree to pause the game when someone needs to take a break. The hard part is finding those and currently the site doesn’t help with that beyond offering communication channels.
What if there could be a special time mode where in addition to standard correspondence time controls, there could be some special end of day “closing time” style timer. Say set the overall game time to 8 hours but in that last half hour “closing time” both players timers would drop by equal amounts of time proportional to the player with the longer clock. So if one player had 10 minutes left and the other had 30 minutes, both players clocks drop by one minute every minute (scaled to the longer clock).
The idea would be to force the end of the game, but keep the spirit of the fast correspondence. The player with the longer clock would still have some time advantage and both players would have the guarantee that the game will finish by a fixed amount of time.
A scheme like this would work for other types of fast correspondence, say players who want a game that lasts one week at most could choose a 36 hour closing time period. Choosing the length of closing time would be another timer parameter. Maybe only compatible with Fischer or absolute time?
The player with the long clock could create some weird timeouts forcing the game to go into closing time, so maybe not appropriate for a rated game.
there are new Ladder features?
Yes! Non-handicap Japanese-rules is no longer the only option.
Group admins setting up group ladders can now choose a ruleset, and choose whether the ladder is handicapped or not. So for instance, the ladders in the AGA group now use AGA rules, and there are two New Zealand groups with NZ rules ladders, one handicapped, and the other one not.