went ahead and replied on my youtube video you commented on, but i'll post it here as well.
Hey there! funny you comment on the day I make a DTube video, hah.
I would try splitting your video up or changing some of the markup in it (i know you mentioned the character limit, but it can't hurt to try). I don't think it's the content, and the NSA_PRISM I think is likely a joke by someone and their wireless access point.
a quick search found another guy having the same message as you with very innocent content, but an extremely long article with intense markup language in it.
https://steemit.com/bisteemit/@hackerwhacker/steem-author-post-data-analysis
also i went ahead and gave you a follow on there. hope you figure this out!