No idea (it's hard for me to imagine how to even design such an experiment but I'm no curiosity scientist) although HN's weird title rules are probably the thin

No idea (it's hard for me to imagine how to even design such an experiment but I'm no curiosity scientist) although HN's weird title rules are probably the thing (out of the various weird rules) that the HN hive mind has expended the most thinker bees on. So if nothing else, they're HN-tested!