Then read the article and not just the headline. There are various examples of why that's happening.
There’s a canning recipe that’s been allowed to stay up despite the potential to make people sick. A moderator with zero 3D-printing experience joined as a “joke” to replace a mod whose expertise included identifying functional gun printing recipes. A new home automation moderator insists expert knowledge is unnecessary in a subreddit where bad advice can lead to electrocution or compromised cybersecurity.
Your examples are just funny, but when (good) journalists write "could", it means that they have analyzed something and they are predicting its outcome based on the data they have collected. It's not like they're just making stuff up