My browser's search function (type CTRL and F in Firefox or Explorer) can be called to look for "[new]" which is the flash of red you're looking for. This way you can navigate from one to the next much faster.

Alternately, you could change your account's comment settings (then sub-setting "coment preferences") to have diaries be flat threaded after a while (say when there are more than 150 comments for example).

Ok g'night, I'm off.