I scraped data between 11/6/14 - 12/6/14 as mentioned in the article, the sub train event from qt was fairly recently so outside of my date range.
The subscribers do appear in the chat, I just sat 5 minutes in trick2g's chat and took a screenshot for you: http://imgur.com/MpOJ4CD
Now we can even get more data such as how frequently they subbed. This information wasn't there in november/december.
I've also mentioned in the FAQ that there were cases where the chat would freeze or another problem would occur and I would miss some subs. These are lower bounds but I highly doubt it's also as high as you are thinking. The sub train event is an outlier not part of the norm.
The subscribers do appear in the chat, I just sat 5 minutes in trick2g's chat and took a screenshot for you: http://imgur.com/MpOJ4CD
Now we can even get more data such as how frequently they subbed. This information wasn't there in november/december. I've also mentioned in the FAQ that there were cases where the chat would freeze or another problem would occur and I would miss some subs. These are lower bounds but I highly doubt it's also as high as you are thinking. The sub train event is an outlier not part of the norm.