Why doesn’t my article subscription nag work?

Heavy caching is a known issue with a few hosts. Have your host whitelist the following cookie:

Single site: issuem_lp
Multisite: issuem_lp_<site id>

are the cookies we’re using to track how many articles the user has read. Sometimes hosts will block all cookies and you will have to request they at a minimum let the Leaky Paywall cookie set.