All of the above?
Or none of the above. As danly said, we’re already putting in the effort, every day of the year. Maybe putting more time into this than we ought to. If we were motivated to dedicate more time for an organized event, picking any one of those goals you mentioned wouldn’t mesh with each of our individual interests and skills. So we just have to push on, in all these multiple directions, as best as we can do.
Personally, I’m still trying to add taxa to my identification repertoire, one taxon at a time. I wrote a post yesterday that was feedback on the ID Summaries Demo, but it did include a question that I’d love an answer to, if someone can provide some mentoring: how can I distinguish observations of Hippodamia convergens from similar species in that genus? Even an answer of “no, that’s not possible from a photo” would be helpful.
For the last couple days of this year, I have two particular goals related to my year in review page. I’ve almost made as many identifications this year as I have in my first five years on iNaturalist. I’m not sure if I can match that figure, particularly because of the different ways IDs are counted, but I’m also just short of having helped 25,000 people with my IDs, and that target is easily within reach.