Upvoting a submission also adds it to a list of saved submissions. Thus, if one uses that list to remember interesting articles, discussions, or things that one wishes to read, upvoting many articles which one does not necessarily want saved would dilute that list.
Yea I just found out about that feature. I was trying to figure out how to add an article to my saved list and was dumbfounded to find the one I wanted to save already in my list! I thought for briefly (for as long as my intelligence would allow) Ycombinator had read my mind and it turned out it was cause I voted it up. Yep, so intuitive!
Oh. I guess I never used that feature. I just either bookmark the link in my browser, keep a tab open with that article, or just keep the original link to the story in my RSS reader.
