>>phendr+d3
Comments are the only functionality of a blog that require write access to a backend, without comments a blog can be a simple collection of static files. Any write access to a backend exposes the blog to potential vulnerabilities, requires the backend to be kept up to date. This is not dead simple and does require maintenance. Updating is not trivial if a version of a backend becomes obsolete, you need to dedicate time to migrate your backend to new versions to stay secure.