Wiki Workers United presents itself as a global solidarity union for staff of the Wikimedia Foundation. Based on our analysis, the site earns a Mostly Safe rating. The domain has been registered since 2021, security is clean with no blacklist or threat flags, and the site clearly states its mission and provides a contact email. This is consistent with what you'd expect from a legitimate nonprofit organizing effort.
The main concern is the absence of a privacy policy and terms of service. While this is common for small hobby sites, a union asking supporters to take action and share contact information should have basic data handling disclosures. If you're considering providing personal information, you may want to reach out to them first to understand how they'll use it.
Overall, wikiworkersunited.org does not show signs of being a scam. But as with any site, especially one collecting data, use common sense and don't share more than you're comfortable with until their legal pages are up.