What are some alternatives?
When comparing Helpie Knowledge Base Wiki Plugin and MediaWiki, you can also consider the following products
DokuWiki - DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database.
AMuseWiki - Amusewiki is more than just a wiki engine, it’s also a powerful authoring, archiving and publishing platform.
Wiki.js - An open source, modern and powerful wiki app built on Node.js, Git, and Markdown.
WordPress - WordPress is web software you can use to create a beautiful website or blog. We like to say that WordPress is both free and priceless at the same time.
Nuclino - Nuclino is a unified real-time workspace for teams that brings all your notes, tasks, and docs together in one place.
VuePress - A static site generator by Vue.js 🛠️