Wherever there is profit to be made on the internet, you have massive amounts of weird abuse and botting to game the system. Maybe not even literal bots, but paying a sweatshop in India to leave thousands of generic comments to boost your rankings on the algorithm.
It was noise when it was only people; it's still just noise when it also includes bots.
To me, this present-day noise is indistinguishable from the pre-bot noise. It's the same noise, in that both things are just noise of that shape. "How beautiful!" "I really feel this one!" "I love this song!"
Sometimes, the signal-to-noise ratio is better. Sometimes it's pretty bad. It always has been this way in online discourse -- especially with things that appeal to old folks.
In a track where the protagonist primarily complains about feeling old, it makes sense that most of the comments are that of what old folks have always written online.
(Are these particular comments primarily bot spam? Maybe. I peered into the depths a bit, and accounts for the top comments I looked at had been around for years. That isn't evidence for or against a well-orchestrated long con, but orchestration is hard and people who write insipid comments are plentiful.)