I hadn't looked at /reader (AKA /inbound) for a few days; I can't actually remember how long.
There was a lot in there so I hit mark all as read.
There was probably stuff in there I might want to have read, but if I hadn't actually sought it out I obviously didn't want to read it that much.
I didn't really need to take such drastic action, seeing as items older than a week automatically drop out after gradually fading. I suppose if I was that bothered, the reverse would make more sense: items becoming bolder to emphasise that I haven't read them.
Read 'em while you can, once they're gone they're gone!
No, the whole point is to not pressure myself into reading anything.
It may seem contrary to explicitly subscribe to blogs, to say "these are the people I want to hear from", then not read them, but I am giving myself the option. It is not a guarantee, it is a choice and not an obligation.