> it's not impossible to force other filetypes in there. This in itself makes it high risk

you mean other files will bloat the repo and slow down the performance? Yes it's a very valid concern, but this system targets personal blogs, which I assume had very few comment traffic.

> Git is the wrong tool for the job ..... A database ... is a far superior choice in just about every possible way

the same argument applies to Wordpress.

But most tech people are choosing static generated blogs anyway, and with git too. File system is the database.

And there are good reasons for that.