Undocumented to unusability

The regex feature it boasts is simply a really limited version of regex, which is awfully undocumented. There is no way to know the syntax used or which elements are removed, so don’t expect any regex guide or linter to be useful with this.

Most of the other functions are undocumented as well, forcing users to rely on a blog post with closed comments to understand what to do, to the point of effectively not having some features, because it’s impossible to learn how to use them.