I forgot to commit to the recently launched Software Recommendations proposal thus I shouldn't be able to see the site or any questions/answers on it, than why I was able to open this question?
Evidence
I also tried other questions, but this was the only one that revealed itself.
Looks like there is a problem around the emails tag because I can see content in these links too:
https://softwarerecs.stackexchange.com/questions/tagged/emails
https://softwarerecs.stackexchange.com/tags/emails/info