Sometimes those quests are bothering me and I'm not interested doing them, but they keep pop-ing up even after I manual complete them.
I like requests option/command to disable/enable seasonal holiday quests.

Thanks.

Some of the holiday quests have very similar tooltips. Just keep SHIFT+CLICKING them until they are gone. If they reappear after a reload or relog then something is going on with that characters Saved Variables. Once a quest is completed it should never reappear.

As I've already mentioned in several other threads... holiday quests have no database "key" to identify them with. There is no way to filter these quests out. Questie 4.0 will have that ability in it's new Database.