What do you think about other low quality sources? For instance, "I checked on infowars.com, and this is what came up"? Should they be banned as well?
Your point is conflating a potential low quality source with AI output while also making the judgement that <fill in the blank site> is a low quality source and to be disregarded 100% of the time; ignoring that the potential exists that an informative POV may be present, even on a potential low quality source site.
Have you seen this happen in the wild, ever?
I have not encountered a single instance of this ever since I've started using HN (and can't find one using the site search either) whereas the "I asked ChatGPT" zombie answers are rampant.
If you plagiarise text from a source that is objectively (measurably, systematically) unreliable, without vetting, adding commentary, or doing anything else to add value, then 100% yes that's the same issue
It depends on if you're saying "Infowars has the answer, check out this article" vs "I know this isn't a reputable source, however it's a popular source and there's an interesting debate to be had about Infowars' perspective, even if we can agree it's incorrect."