有办法获得免费的论坛吗？

[Moin]

该软件是免费的。您无需付费即可使用 Discourse。
但如果您没有自己的硬件，则需要付费使用他人的硬件。

Can I host a Discourse forum for free?

In short… Short answer: no. Less short answer: technically, yes, but you may face technical difficulties, and your server will probably have very low specs, resulting in a slow, sometimes hanging forum. It’s also likely you’ll need a credit card, even without fees. Basically, if you need a fully functional Discourse forum and a good user experience, you can’t have this for free. Why can’t I easily set up a Discourse forum for free? Discourse has some requirements. You need a Linux server …

您也可以在自己的硬件上安装 Discourse，例如 Discourse on a Raspberry Pi | Blog