Duplicate IDs for duplicate content
Not sure if this is a problem.
The argument ID is calculated from the URL, the conclusion text, and the premise text.
This means that if an argument is duplicated on the same page and for the same conclusion, they get the same ID, and one of them is thus dropped in indexing.
Now, it seems there are actually several such cases, for example https://www.debate.org/debates/Music-Battle/2/ : there are two posts that just contain the text "http://www.youtube.com... http://www.youtube.com... http://www.youtube.com... http://www.youtube.com... http://www.youtube.com..." (due to debate.org not displaying the full link).
I think it is okay to drop one of these "arguments" since we do not look at links so far. I guess best would probably be to drop both.
So there is nothing to do for this at the moment, so I will close it immediately.