Curiosity is a very strong and very valid reason to do things. It can very often lead to new insights.
And of course it is also necessary from a security point of view to test these kinds of things to see if they lead to strange behaviour.
no, I read it as a solution to a problem that doesn't occur. It's way worse if somebody would type a comma or any other letter at the end of the domain name, as I just learned, the dot is the best character to mistake at the end of a domain
Curiosity is a very strong and very valid reason to do things. It can very often lead to new insights.
And of course it is also necessary from a security point of view to test these kinds of things to see if they lead to strange behaviour.