Well after a certain milestone the guild could get a hat just like before when they reached 1k hours. It doesn't have to be a hat it could be any sort of prize but it just seems like hats are the only incentive to promote any sort of activity in the Graal community.
I'd prefer it to be more competitive than that to where the top 3 guilds with the most points after 3-4 months get a hat.
3-4 months seems to be about the time it takes an average guild to hit 1k hours, so this way instead of having a bunch of different guilds hitting 1k at unexpected times you only have 3 to deal with after every season.
This will also help the uneccessary clutter of guilds on the all time leaderboards that were made just to hit 1k since now the same guild could be reused for the next season.