I was able to handle the 1,500 users who were using the service everyday, but when 50,000 users hit an uncachable and resource intensive backend, unless you’ve done your homework and load tested the living crap out of your entire stack, there’s going to be trouble brewing.
It has also been a dream come true to receive accolades from the many who are trying NewsBlur for the first time and loving it. Since the announcement, NewsBlur has welcomed 5,000 new premium subscribers and 60,000 new users (from 50,000 users originally).
Because it’s open source and because I can actually pay for it (unlike Feedly), Newsblur is my top choice for replacing Google Reader at the moment. And the new design he’s working on is a nice improvement.