However low it might be, as a ratio, isn't something I'd really be too concerned with. The ratio of Steven Spielberg to everyone who sees his movies is pretty

However low it might be, as a ratio, isn't something I'd really be too concerned with. The ratio of Steven Spielberg to everyone who sees his movies is pretty low, for example. I don't think that's a problem. Only 0.2% of users upload photos to flikr, probably because the number of lurkers has skyrocketed. The number of quality contributors only needs to grow fast enough to keep the lurkers and voters growing.