Usually they do, either as some other company's acquisition or as a company that acquires others (like facebook/meta). Little actually is entirely gone, someon

Usually they do, either as some other company's acquisition or as a company that acquires others (like facebook/meta). Little actually is entirely gone, someone snatches it when the price gets low enough. Whether they grow themselves to the point they buy others or are bought is a distinction without a difference in this case. Their DNA exists in myriad ways, and even if they survived and weren't bought few few online companies are the same a decade later.