Makes sense. In my experience wsj has one of the strictest paywalls, nothing works. These workarounds do things like impersonate Google. Most news orgs think the vulnerability is worth being fully indexed, whereas wsj would rather have Google only index their intro.
Broadly speaking these workarounds are for websites that sometimes show you the full story (i.e. based on a cookie or your referer).
Broadly speaking these workarounds are for websites that sometimes show you the full story (i.e. based on a cookie or your referer).