So, it's a union of Kickstarter employees, asking Kickstarter users to put pressure on Kickstarter to give them a good contract.

More power to 'em.

I don't get it, isn't the point of the union to bargain with Kickstarter themselves? What will a bunch of random signatures from internet users change?

Since April 2022, Kickstarter employees have worked under a four-day, 32-hour workweek... During this time, Kickstarter experienced the most successful period in its 16-year history, hosting some of the biggest, most groundbreaking projects ever launched on the platform.

...

As we entered contract negotiations with management, we asked them to make the four-day, 32-hour workweek permanent—not as a pilot or a promise, but as policy. We also included flexible provisions that would allow management to temporarily return to a five-day work week in the event of true business need, ensuring creators and backers are fully supported throughout the week. They have refused and are determined to retain the ability to make us work 25% more hours for no additional compensation. In other words, they want the option to make us work more for free.

I see where they're coming from but seems a bit weird to embark your customers so they back your very specific demand to your employer.

I mean, sure, unionize, fight to make your job better or at least prevent it from getting shittier. But what kind of weight do people who use Kickstarter have in company policy? The only power they have is just to stop using it, and the employees obviously don't want that. They even had to mention "pretty please don't boycott Kickstarter" right here in the end.

Meanwhile in Greece they're fighting for a 13 hour work day, yay!