You can e.g. Rocket scientists VS. Janitors.

Note what I am not saying (which people might take offense to) is "you use Vue not Elm, so you are dumb". Nope of course that isn't true!. I am saying in aggregate, due to selection biases etc, Elm attracts smart people. A lot of really smart people will stick to popular frameworks and not use Elm. Some bad programmers might use Elm for some reason. Aggregates are what I am talking about.

> "what are third party libs like?", "how active are people in this community?", "how active is the SO and other forums?". These are actionable questions.

These are good questions.

Another question though is: how much do I trust another library to not have bugs? Given Elm's design vs. vanilla JS, I'd go for Elm. That confidence extends to "How much do I trust a Library I knocked up over the weekend to solve an previously unsolved problem in Elm".

To assume with no basis, sure; to conclude it may or may not be.

> It's just not even the right question to ask.

It's not inherently operationalized, sure, though (as seen elsewhere in this thread), “advertising jobs for platform A results in us needing to filter out fewer candidates with no real programming ability than when we advertise jobs for platform B” I'd pretty much an operationalization of it, and quite (to address your later point) actionable.