It'll cause more zits and the like, more stringing, don't know that'd 100% cause the issue but certainly won't help.
I just did a round of nylon last week which is also super hygroscopic, bag's like at most 8 months old but seal was intact. Even printing out of a drybox with fresh desiccant I noticed more stringing and occasional blobs + nozzle buildup over the few days (Was redoing my hotend so I inspected it, no sign of nozzle leaking), can definitely make overhangs worse.
I hope not, it's apparently pretty awful. You were up to fairly recently able to get Acetaminophen w/ caffeine and codeine (8mg) over the counter in Canada, found an article about a decade ago that mentions liver injury in people, definitely recall reading articles about bans on the sale because of the injury risk.