I've been tracking how many new GWWC pledges are taken each month using this Colab for a while:
Using this single data point, the picture is mixed I'd say, especially once you consider that What We Owe The Future came out in August 2022 and recession fears started at a similar time. There is also some seasonality of pledging around January, so I did year over year % change for 2021-22:
Not including January 2023 yet, as it's not over and it also takes some time for people to show up on the list after they take the pledge.
There is a longer term plot in the Colab, but it's too ugly to post here and I'm too lazy to fix it. If someone could make a nicer looking bar chart, I would appreciate it.