benefits of "MySQL-backed installs"?

I’m looking at installing WriteFreely, and am curious about what the benefits are of a “MySQL-backed install”. That aspect of WF is mentioned only on the install page, and I’m not seeing anything about it here other than folks having issues with MySQL.

What’s the difference? What do I get with it / why should I use it? What do I get without it / why should I not use it?

The main reason to use MySQL would probably be that you already have a MySQL server running, or just prefer to work with that. You might also plan to run multiple WriteFreely application servers, e.g. behind a load balancer, and having a single MySQL database behind them can simplify this setup – though I haven’t heard of anyone doing this (outside of our large instance on Write.as).

Otherwise, SQLite is great for simplified installations, as everything is stored in a single SQLite file on the local machine. Ultimately, it’s really up to your individual preference.