Seems like you aren't alone, but might be a couple weeks late. Traffic's dropped tremendously, it feels like (then again, so has the amount of startup-related news). Care to corroborate, PG?
I have noticed the drop off too, I has associating it with the end of the application period for YC... That said, the dreary pace does allow us to slow down and focus. I think this would be a great time for us to start some broader discussions and actually have the discussion carry on for a couple days instead of hours.
That said, as someone else pointed out, what really matters is doing things, not talking about em :)
