Hello,
When I did a lot of image uploads recently (the country flags of the english wikipedia for the german pages) I came across a very annoying thing: Step 1: choose "Upload file" from the special menu Step 2: Upload of the file and then I get a page, announcing that the file was succesfully uploaded - but that's not where I wanted to go, I want to upload the next image!
These announce pages are in my opinion completely useless (an error message, if it was not okay would be sufficient). It's always one or more mouse clicks to much. Same for the "You succesfully logged in" or "The page was added to your watchlist".
In my opinion an immediate redirect to the page where I came from (maybe with a line "successfully logged in" on top of the page, if this is technically possible) would make more sense. You would save mouse clicks and page loads - especially for people with a slow connection this is an important feature. It's a principle of user interface design: a programm which confirms every action of the user ("You have done this") and then demands a click on the OK-button, before one can go back to work, is not well designed.
greetings, elian