I’d noticed that the new developer was maybe having some problems over the last couple of months.
1) Frequent new versions were producing bug reports.
2) A thread started by the original developer about lack of accreditation in the readme was left without a reply.
3) The last update was issued without release notes (I didn’t update).
Maybe someone else will pick up the plugin. That would be good. It will be quite a bit of work if everyone has to change all the footnotes on their sites.