No notification email was sent to me after you had written on my user talk page, which has just been added onto my watchlist.
My userpage was finally updated after all other pages (including yours) had been updated.
To get notifications from LiquidThreads, make sure you have checked the LQTemail box on the Gadgets page of your preferences.
Done as you said, thanks. How did you discover my above reply? Read the recent changes page?