One of the most toxic beliefs around the arts is that they're essentially just a hobby for everyone, including successful professionals.
There's a lot of "I could do that", slightly less "I could do that if I practiced enough" and occasionally some "You're so lucky to be doing that."
Insiders know it's basically a job. There's a surprising amount of admin, marketing, and networking involved, a lot of stress around deadlines, sometimes stress and drama around coworkers/reviewers/critics/consumers/managing execs, and so on.
That's in addition to craft and technique, which even the most gifted creatives have to spend plenty of time on.
No one wafts out of their bedroom and casually sketches a hit single, a symphony, or a best selling novel.
So if people want to write reviews for free - that's creative in the hobby sense. But not so much in the professional sense.
The upside about creative professionals is that unlike hobbyists - and like other professionals - they will get the job done. Whatever the job is.
It may not always be the biggest success, but something will be produced, and it's very likely to be of higher quality than the output of a casual.