Back in 2015 I had the chance to buy the domain js.org. After convincing my wife that it is a good I idea to spend money on 5 letters and a dot, I took the opportunity and bought it.
Since then I'm sharing the domain with the JavaScript community by handing out subdomains. webpack.js.org is probably the best known example. But there are 2000+ other websites under the js.org domain already.

While being a free service, some of the subdomain-owners wanted to contribute financially to my expenses.
So I first tried PayPal-Button on the page. But after a contributor set up a yearly payment of 5€ (in 12 monthly rates) I had to reach out to him and ask him to stop the payment because there is a minimum fee of 0.5€ by PayPal (so they would literally just take everything). That is the reason I'm here.

If you want to contribute to JS.ORGs registrar fees you are welcome; if not, enjoy the service for free.