So I'm browsing YouTube and I come across a video titled "Why Wasn't Palpatine Removed as Chancellor after Zillo Beast Attack(Canon) Explain Star Wars" by BessY. It has over 460,000 views.
Immediately this reminded me of my question, "How did Palpatine's Chancellorship survive the Zillo Beast attack?". I find it cool that somebody out there had the same question as me and I watch the video. I quickly discover that it quotes exactly the same parts of the Clone Wars episodes that I do. More curiously, it includes the exact same extract from the Ultimate Star Wars factbook as Valorum's answer does.
My question is dated 20th January 2017. Valorum's answer is dated 23rd January 2017. BessY's video is dated 29th January 2017.
Bottom line: I strongly suspect that this YouTube user stole the question concept and the answer for their video.
Now part of me feels kind of flattered that a question I came up with has been given a much wider audience (my question has only 942 views, but the video has 489 times as many). Part of me feels wronged and cheated that someone else is claiming the credit for original content on this site.
What, if anything, should we do about this? I've read this meta question about third party sites but I don't know if there's a difference between code being copy-and-pasted from say Stack Overflow and material from a Sci Fi question being used for a YouTube post. In any event, it can't be proved that this is definitely a case of plagiarism without BessY confirming it themselves. However, if the YouTube video has copied us then it hasn't provided attribution, which the linked meta post says is required.
My concern is broader than just this one question. How should we respond if this happens again in the future? I'm not knowledgeable enough about our Star Wars questions (having spent most of my time in the Harry Potter tag) to know whether BessY has used StackExchange posts as the basis of any of their other videos, but they could have done. Surely we don't want to put in all the time and effort that we do on our posts just to have our work nicked without attribution by random people on the web?
My response so far has just been to leave a comment on the video asking if they got the idea from us. Maybe that's all that can be done but that makes me feel somewhat...powerless.
How should we respond to this sort of suspected plagiarism?