As a paid user and donor who has been using the software for half a year, I do not recommend its usage. Certain features of the software require account registration. However, the developers manage accounts arbitrarily, unilaterally changing account usage rules temporarily, and exercising speech control within the forum, directly altering or deleting posts that question their actions. You might consider using Obsidian or Logseq instead.
I've been searching for months for the ultimate PKMS. SiYuan is it, and it's made by a power couple who are dedicated to FOSS. Offline first, beautiful transclusion support, completely cross platform. I'm in love. The pace of development is incredibly rapid as well, as opposed to some FOSS projects that seem to be on life support.
My main writing app. Siyuan has all the features I need, it's extendable, and it works.
I deduct one star because the desktop application is Electron-based, which I am extremely against, and they ask users to pay in order to sync their notes. I self-host my own, so I don't have to deal with either of those issues.
