Hello,
As of siege, time were split to make more players participate and players with different time zone can participate on either 1 of them. It was split in 3 different hour and was shown that only 2 sieges were beiing fought. So they put it back on 2 sieges, where Chinese can participate on first one.
Since server has low population, they could reduce the castles numbers again to only 2 to try bring some fights, but fights aren't GM fault, it's players who decide to go or not.
For events, I dont know the time zone of GMs, but as of our as V, we try to make them earlier but since me and D0gm4 have 2 different time zone, they don't always fit and we can't do event while there are other stuff like Tesseris/sieges.
Only way I see is if we would manage events solo and at 2 different time to try reach more players, but that would bring a question of beiing "fair" since we would manage all alone, we saw it in the past and got accused alot depending winner's, so we decided to mostly always make them together to bring the most fair and fun events possible.
I'm sorry if you feel not included and that the hours are difficult, but the server always had those hours. Maybe others have ideas that could help, but us as V are tied.
Hope you still find fun !