> We also didn't want it to fill up our inboxes with notifications when we didn't have time to read. 1) Why would this messaging system deliver fewer notificat

> We also didn't want it to fill up our inboxes with notifications when we didn't have time to read. 1) Why would this messaging system deliver fewer notifications than RSS (besides the fact that few sites use this system yet)? 2) Why are popups on my screen a better interface than a mail-like interface? I strongly prefer the latter if I'm receiving many messages; lots of popups seem unpleasant.