Recently I have noticed for the first time a comment by a moderator which contained @@username. Previously I have seen something similar in chat - I know that the mods have superping in chat - the ability to ping any user, even if they were not present in that chatroom (so they are not pingable b...

This question is about suppression of threads of comments by moderators, moved to chat with the message "Comments are not for extended discussion; this conversation has been moved to chat", with link to the chat. A recent example is this post. I'm not addressing the case of polemical comments or ...

Given that I have a function $f$ with respect to $n$ variables $\lambda_1, \cdots, \lambda_n$. Namely, $$ f(\lambda_1, \cdots, \lambda_n) \quad 0 < \lambda_i < 1 $$ Now I investigate one of its special cases, i.e., all the $\lambda_i$ is set to the same value. $$ \bar f(\lambda) \quad 0 < \la...