@knuthollund maybe other !gnusocial admins could check one their instances whether they have those slow queries, too.
Because I wonder why this seems to affect only quitter.no (apart from also quitter.se which is currently down), _even though_ quitter.no has already such powerful hardware like SSD, 12 GB RAM and the whole database kept in memory. I would expect there are at least some less powerful instances around, but I'm still still havent found other instances affected by this #every-few-minutes-unresponsive-for30-seconds-issue.