Anecdotal: (of an account) not necessarily true or reliable, because based on personal accounts rather than facts or research.
If you say you drove a 3 minute lap but you didn't time it, that's an anecdote (and is what I mean). If you measured it, that would be a fact.
In this case it's more like someone simulated a 3-minute lap and tried to pass it off as a real car with real friction.
I think from your top post you also miss “representative”.
If you measure something and amount is N=1 it might be a fact but still a fact true for a single person.
I often don’t need a sample size of 1000 to consider something worth of my time but if it is sample N=1 by a random person on the internet I am going to doubt that.
If I see 1000 people claiming it makes them more productive I am going to check. If it is going to be done by 5 people who I follow and expect they know tech quite well I am going to check as well.