Xbox One Introduction Video

Well, there is always the risk of overheating, but I think that is more preoccupying when used actively. Appart of that, there is no real "immediate" risk of your device. But be aware that normal weariness, of the constant use of the device (like all machines), will reduce the lifespan of the disk/fans/mechanical parts. (Yes, some machines use more power cycling on/off than they do in constant use, but I don't think that's likely the case with a gaming console.)

TL;DR: if you leave your device in a good ventilated place to dissipate the heat and periodical dust clean ups, there isn't any risk, but your device may not last as long if it's constantly used.

While rather confusing and somewhat embarrassing of a fix - its mainly because I have not enough friends. Well, not enough friends with a One who are also actively uploading things.

I went through so much debugging with Xbox Twitter support, checking my profile, etc. Well, then to try something I followed Major Nelson, and it started working! But only for him. I then found a friend who had last updated a video, but that had been a few weeks ago.

This feature is very time dependent. So, instead of being my friends uploads, its more so their 'recent' uploads, and by recent does not mean their last, but recent in time, like a week or so.

Now that Titanfall is out a friend has been uploading some videos and it works as it should.