I think 3 days is fine - now that I can specify 1 day on mobile. I guess it depends on how often folk visit. I tend to read the site every morning at breakfast - along with half a dozen others.

Alexa's stats suggest there was a slight reduction in users in July - though their numbers are not absolute.
https://www.alexa.com/siteinfo/mudcat.org

There are more than twice as many US visitors than Brits. And 10% of visitors are from France! Are these retired Brits? Sinon, postez plus!