As the original Reddit thread pointed out, a fully-automatic edit system is required to use a separate bot account. Edits like this, is called a semi-automatic edit, or "cleanup tasks", or "maintenance". It includes adding proper categories, fixing links and typos, correcting some deprecated Mediawiki syntax and templates to standard code, etc. Editors can use mulitple tools to do this job, with a mouse click and proper regular expressions, you can edit a dozen of pages.