As per Christmas tradition, solstice decorations will be removed from the forum on the Twelfth Night after 25 December. For safety’s sake, let’s call that 2020-01-05T14:00:00Z, though it may be as late as Monday evening.
(In this context, “The Fates” is me .)
To choose a faction, you must simply join its group. Do not try to join both factions or The Fates (still me) will not be pleased.
You can join the group by clicking on their links above and then clicking “Join”, or by going to the list of Groups and navigating from there. The list of Groups may be found on the hamburger menu in the top right, or from the previous link.
Remember to also leave the “Ho! Ho! Ho!” group. It’s not going anywhere, so you’ll be able to join it again in December.