I agree with both of you. No disagreement here. I guess I was being too oblique, but what I meant was just that the filament industry would rather that we be talking about those bacteria in cracks reasons rather than wondering about whether their filament is even safe to handle because of what’s in it.
For instance, I just recently purchased Mitutoyo calipers, and it came with this note:
A lot of corrosion inhibitors are actually pretty toxic. What about the ones in the cooling water that your filament is streamed through? Who knows? And that’s just one type of thing out of probably many.