While there are certain things most users will anticipate with any interface, there may be expected affordances that are unique to your users and the cohort they represent

JavaScript, as a language, has some fundamental shortcomings — I think the majority of us agree on that much. But everyone has a different opinion on what precisely the shortcomings are.

As to opinions about the shortcomings of the language itself, or the standard run-times, it’s important to realize that every developer has a different background, different experience, different needs, temperament, values, and a slew of other cultural motivations and concerns — individual opinions will always be largely personal and, to some degree, non-technical in nature.