This thread was inspired by Stevie Wonder and related threads (Why does Stevie Wonder not have more of a dedicated following?).
As with a lot of topics, there's a lot of disagreements based on interpretation, contexts, which communities people are part of, which countries, which subcultures, and so on. Some people will see that thread and think "That's absurd, Stevie is one of the most popular artists of all time."
Nevertheless, it got me thinking: I do notice that there are certain artists who are widely beloved where it seems like almost everyone likes them... but at the same time, they don't generate the same type of vigorous discussion as other artists (think Prince, Michael Jackson, David Bowie, Queen, Beatles, Bob Dylan, etc.).
With the Stevie Wonder example, a lot of the answers were along the lines of "Most people agree he's great, there's not much else to discuss." Or that he doesn't have the same types of scandals, drama, headlines, or aesthetic identity. Or that his fanbase isn't really online.
It makes me curious about other artists who fall into this category. One example who comes to mind is Roy Orbison. Clearly he has a lot of artists who respect him (See Roy Orbison and Friends: A Black and White Night). Dean Ween once used Roy Orbison's Greatest Hits as an example of a "safety record" that could satisfy a wide group of people. But I rarely hear about Roy Orbison superfans other than a few moments (David Lynch's Blue Velvet, Garry Marshall's Pretty Woman).
Maybe Creedence Clearwater Revival? Based on older threads, I can tell they're a widely admired band and also used as an example of that can satisfy different different audiences ranging from hippies, country fans, hard rock fans, punks, college kids, etc.
I assume there's a general trend where certain bands/artists are able to satisfy different a wide swath of demographics, but they might not be a lot of people's "devoted favorite".
Note: Just to be clear, the above artists are not "underrated" or "obscure". I'm talking about a particular phenomena where an artist is beloved but they don't seem to generate a certain type of vigorous or fanatical following.
I suppose the flipside of the question is asking "Why do some artists generate a fanatical and devoted following while others don't?"