Earlier quoted context omitted.
Look, his post may be insightful and interesting, but the point is that if any other startup on here spent post after post publicly criticising their direct competitor, it would hopefully be viewed as a negative thing. Why is App.net any different? There are plenty of ways to promote your scrappy and noble insurgency without sticking it in the eye of your competitor. Again, I think what app.net is doing is interestin…
DuckDuckGo publicly blogs about what they feel are the shortcomings of Google. I've seen similar feedback in the comments of the DDG articles.
I think marketing your product by criticizing your competitor is fine, but constantly blogging about how bad/evil your competitor is can be tiring and people just don't care anymore "oh, it's X criticizing Y again to promote his product, how novel!".