How long between "New Posts" searches?
 

Tried clicking "New Posts" once every minute for a few minutes. Same results each time with this heading:
Is it telling me:
a) There have been no new posts in the last 11 minutes, or
b) Don't bother clicking "New Posts" more than once every ...11+?... minutes?

(Edit: The minute counter increments but the rest remains the same.)

Should I take it as a hint? :D