I tweeted about this last night after seeing Adam Sessler post about it.
TL;DR version: for some strange reason Sony's PS4 will not allow sharing of video to YouTube, the world's most popular video sharing service. I'm going to state the obvious and say that this pretty lame and doesn't make a lot of sense.
In all fairness, the current PlayStation doesn't really allow for sharing the YouTube, as stated in the video. Sessler's point is that this is horrifically bad for video game journalism. The video goes on to explain that ideally the development kits will be able to do it but it really makes it hard for those without them (read: everyone not already an established journalist) to post videos.
In the end, I'm sure that Sessler will not be affected by this. However, what I am genuinely concerned about is the ability of others to do journalism and scholarship. Personally, I've used YouTube in order to watch and take notes on specific parts of video games. Instead playing through it again and again I was able to use a video to get all the information I wanted.
The damage is mitigated by the fact that the Xbox One should still be able to. From a pure scholarship point of view any platform is the same as any other platform. However there are going to be exclusives and that makes it matter.
Anyway, please pass this around, send it to people. If Microsoft was any indication, being mad enough about something might actually change it.
Update: Shuhei Yoshida just posted on his twitter that there may be a reversal in the works.
We'd like to keep gamers happy and are considering every possibility regarding PS4's gameplay capture. We'll update you as soon as ready.
— Shuhei Yoshida (@yosp) September 12, 2013