The guild icon in the bottom left corner turns into a raid icon, if any raid is active. For ticket-progressive guilds almost every day a raid is active and it is easy to forget signing up. Feature request: Add a red dot to the the guild icon, when a raid with sign-up phase is active and the player has not yet registered to it.
This is especially helpful for officers, as we also get red bubbles for inactive raids, that have enough tickets to be run on a lower tier, see rancor raid:
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