So they can focus on space exploration instead of web site maintenance? I understand why they use YouTube for video hosting (video hosting is difficult and exp

So they can focus on space exploration instead of web site maintenance? I understand why they use YouTube for video hosting (video hosting is difficult and expensive) and have a prescence on social media (to reach a wider audience), but yeah, Tumblr is a bit strange. NASA's online prescence is a bit fragmented in the first place, their different facilities have their own websites, social media accounts, etc.