Why Y Combinator Has No Class

huh? i looked at the ycombinator twitter and i don't see what the guy is talking about. is he confusing hacker news having 'why tumblr sucks' as a top story with an official ycombinator statement?

The official twitter of hacker news is http://twitter.com/hackernews. The hacker news Twitter automatically tweets out top stories. That guy must have assumed the 'Tumblr sucks' tweet to be a official Y Combinator tweet without even clicking on the link.