Not necessarily a bad thing though.
Think of it this way: There’s value in having access to a list of curated content others have deemed “worth reading or looking at”. But there is just as much value in engaging in some banter, provided it doesn’t lead to outright war in the comments.
I admit, it is tiresome trying to seriously discuss a topic when people haven’t actually read the article, but there is still an upside to a topic triggering at least enough interest to where people actually want to engage.
Slugs to be you then, I guess. :P
In all seriousness, the graph shows different species as fraction of total uses recorded. Since the paper is mostly about mice, and behavioural differences under different circumstances, it being unfair to the slugs is probably not such a big deal here.