我看英文论坛那边Tag Wrangler的开发者提供了一个思路：
他觉得直接批量删除tag是不可逆的操作，于是建议，把想要删除的tag重命名成一个已经存在的tag，这样就替换掉了原标签。
一种“曲线救国”。
在另一个话题中
(I’ve considered adding tag deletion as well, but given that it’s a destructive operation with no undo, well… seems better to do it with an interactive search and replace, or to just merge the tag into another tag – i.e. rename it to the same as an existing tag. This will “delete” the old name from the tag pane, at any rate.)
Obsidian Forum – 1 Feb 21
Tag Mass Action: Add, Rename, and Delete a tag in multiple files (Tag Wrangler)
Feature requests
valuable
tags
Another possibility: the Tag Wrangler can now rename tags, and does so intelligently for both body tags and front-matter ones. It uses Obsidian’s own indexing to know what is a tag and what isn’t, so it won’t change things in e.g. code blocks or...