@205gti
The author posted in May on https://github.com/mattl/hacienda/discussions/117 that "I have taken the decision in light of recent events to close Libre.fm permanently.", then he changed this statement several times, but until recently it has been pretty clear that libre.fm was more or less closed. Apparently he changed his mind in the last few days and relaunched a new site replacing the bare bone strange site that was in place of the original site.
But this doesn't change the fact that libre.fm has been unstable for years, hardly anyone uses it, and seem to be pretty much a one-man project going nowhere. I've also pretty much lost my trust in libre.fm.
We already got both last.fm and listenbrainz as an alternative, I see no point in adding it back.