I changed it to 2 a day, after some thought.
Cheers
If you're serious about quality and the curating part, then one or two a week is where you want to be. At two a day, you probably just signed away your evenings to clicking reject on shot after shot of people playing with their cell phones, sleeping, or otherwise doing not much of anything interesting. Seasoned street photographers will tell you that they produce more misses than hits -- and only a handful of keepers a year. Still, I would venture to say that there are photographers on Flickr and elsewhere that produce strong street work pretty regularly. Two a week will likely deter the so called "dump and run" crowd and free you to do more productive things -- like finding and inviting work into your group that represents your vision.
HCSP is a good model, though not very friendly. ESP (Extreme Street Photography) was good at one time. I haven't checked in with them in some time though. I kind of got away from this type of shooting.