I can't say I've ever really seen the term used when it wasn't talking very broadly about a bunch of people who make lots of different stuff on the internet, like art, writing, videos etc. rather than specifically about people who all make the same thing. Like if I was talking about a group that included webcomic creators, youtubers who make video essays, and writers of interactive fiction on Twine.... does "Artist" sound correct to refer to that whole group? Not really.
I'm a content creator. It's my job. My skillset is so broad, my day job resorted to the title "Creative" because it was hard to really describe what I do with just "Illustrator" or "Writer" or "Designer", and even outside of my day job, some people might know me as the artist and writer of Errant, a webcomic on Tapas, others might know me as the creator of the DM's Guild Mithril-selling D&D class, the Spellbinder, or as an admin of the Voxus voice acting group, or as artist on over 10 published indie games, or an illustrator on books, or the designer of logos and even websites.... I'm not just an "Artist", and at a certain point, calling myself "3D/2D Artist/Writer/Games Designer/Graphic Designer/Voice Actor..." starts getting ridiculous. I make content that people enjoy across many genres and in many media, and personally, I'm not ashamed of that. I'm proud of that! Yeah, I made content. I make damn good content!
I don't really get what's insulting about the term "content". A box has contents, and those contents can be good or bad. A book has contents; it even has a "Contents Page" listing...the contents. It's a neutral term, it just means...stuff contained within. I don't transcend that somehow. I make a silly webcomic about magical knights, and it's one of many works I've made, and I don't expect it to be remembered as some great work of literature in twenty years... but then, the reason Shakespeare's works were so good, and why a number of them were lost to time, is because he didn't expect his works to be regarded as great literature either. He was just making content for the theatres, to entertain people and please his clients. A lot of our great works of art and literature were simply created to be "content", often paid for by a client for private enjoyment (like the Mona Lisa), or to be serialised entertainment (the works of Charles Dickens), and it doesn't stop them being good.
Personally, I'm a fan of this quote from Don Simpson:
"The pursuit of making money is the only reason to make movies. We have no obligation to make history. We have no obligation to make art... Our obligation is to make money, and to make money it may be necessary to make history, art or some significant statement."
Being created as "content" doesn't stop a thing from potentially being great art worthy of academic critical analysis, or of being preserved for the ages. But if you make stuff that isn't fit for audience consumption, it's only an act of self-gratification... and that's fine if self-gratification is your aim, but people won't remember a work or praise you as a great "artist" or "writer" if they can't connect with it or find it. Being able to make content the audience actually wants to engage with is an important skill, and you're not somehow better and more pure by lacking it or never trying to develop it.