As someone who's been using little logs from a few months ago, I can say that it's had an interesting impact on my behaviour. The community there is incredibly positive. That has helped me actually be more productive as I aimed to have something "loggable" each day. I started out with a question of "won't this be like Twitter?". But through community management and various little things like markdown support and tagging logs under various projects, it's vastly different from the experience you get on twitter. One of those little big details things