1)The way it is done now, do you often get to go through the entire list or if not, what percentage of the list do you normally make it through? Like how often do you finish through the list.
2)Also, I can see what you mean by five not getting as much attention but as a whole wouldn't tickets be answered faster. I know ideally people should put up all the information they have but if they forgot something their less inclined to provide it when they know they move to the bottom of this list. It may actually be the reason why most bumps you say you get are just spam and not people providing something useful.
