Edited post above for 4th thing I noticed:
4. Not sure if this is due to recent change, I saw that if you open videos in tabs, and then come back to them, there will be a message that says approximately (in the video box) "Link has expired. Please refresh." Sometimes there is an ad over it so you can't see much of the error message.
Tutti i partecipanti sono almeno 18 anni di età.