The language has been around for decades and it's always been marginal, for multiple reasons (license, cost and the whole image deployment model which, even today, makes it problematic to do even the simplest things, e.g. deploy a simple Smalltalk web app to the cloud).
In 90's Portugal it was common as enterprise language used by the likes of IBM and friends, also used to teach OO in many universities (alongside C++), before Java was born.
The language has been around for decades and it's always been marginal, for multiple reasons (license, cost and the whole image deployment model which, even today, makes it problematic to do even the simplest things, e.g. deploy a simple Smalltalk web app to the cloud).