Yeah, that happens sometimes, but if the second link is more suitable then the discussion eventually adapts for the better. So the only real question is which link is more suitable.

One principle I like to use is to assume readers are smart—e.g. in this case, that readers are smart enough to figure out that there are two relevant links to the comments. Of course randomness is also a factor, but it mostly all works out.

The original link barely made any sense and many of those comments were comments without the useful context. The root cause here is the iffy submission, not the outdated comments or the change to a more meaningful link.

Sorry for the confusion! I've added https://news.ycombinator.com/item?id=31016938 at the top of the thread so people will see both links.