Thanks for the "heads up" that this is optional....
When it first happened to me, way back when they (WP) first introduced this "feature" I was not amused.
Since being run over by a car four years ago and sustaining a mild Traumatic Brain Injury I have problems with many aspects of Executive Function, so when the first of these videos appeared I couldn't work out what was happening.
Earlier in the day I had been listening to something with a quiet soundtrack and so the volume on my computer was still turned up high. .... This was not good news, especially as the basketball video that appeared on my screen had a loud soundtrack within itself !
Before I had the time to mentally analyse the screen and check out volume levels, location of volume slides etc most of my brain was scrambled by the deafening roar of the video.
I responded, vociferously, to WP through the message prompt at the bottom of the video making it quite clear that I was not amused and that I didn't want that sort of surprise ever again.
Last night, at about 01:30, it happened again.
This time I just managed to hit the mute button in time, but I didn't hold back in my response to WP.
To me, with my condition, the panic and dread that it instilled in me was akin to suddenly coming across two wild tigers.... and I let them know my thoughts on the matter in no uncertain terms, so much so that I'm surprised to still be allowed on here today.
It took me hours to get to sleep last night.
They (WP) never replied to my original message, of course, so they never reminded me that this "feature" is optional.
My muddled recollection is that this is also connected to the "This post is super-awesome" button, but I'll be prepared to live without that for some peace of mind with regard to these videos.
Anyway, rant over... Thanks again for reminding me that this could be optional.
I'll track it down and nail the little #@*%?$.