/jp/ - Otaku Culture

I went a little deeper into the Ayaka rabbit hole today and found out an interesting meme.

It seems to come from NicoNico viewers, specifically when Ayaka is doing Afternoon. During this shift, there is a corner called "Weathernews UPDATE", in which the caster shows a summary of tomorrow's weather, starting from Hokkaidou down to Okinawa. When Ayaka does it, everyone in chat calls her お嬢様 and offers her local specialty from the place she's currently talking about. Chat calls this meme 物産展 (products exhibition).

Here's one example from last October:
https://www.youtube.com/watch?v=OV4VRQQOEjs
Spam starts around 0:40. At the end of it, Ayaka even acknowledges she was looking at the chat during this corner lmao

It seems no other caster is associated with this meme, looking for "物産展 ニコニコ" on Youtube only returns Ayaka's afternoon clips. She also talked about the meme during that auPAY stream:
https://www.youtube.com/watch?v=Nz8d9O7tYqg

Because of the time difference, I can never watch Ayaka's afternoons on Youtube. Do you guys know if this spam also happens in Youtube's chat? I've checked some previous lives, unfortunately the chat history is unavailable...

Also I haven't found why they call her お嬢様 or do this, no idea on why and when it started lmao. I've only seen one comment about it on Ayaka's 5ch thread, so it looks kinda obscure.