I guess you need to understand the deeper meaning implied by that comment. It's OK if you don't - unfortunately social media and now LLMs have strongly impacted the average Joe's or average Teddy's ability to understand something like this.
Nearly as much as they have impacted the ability of some to articulate clearly?
Perhaps it'd be best for all to drop the snide and review the HN comment guidelines.
It’s not a question of understanding; the issue is that the comment had literally no other meaning than “this is bad, for a non-specified reason which I will not give”. This is, by itself, not worth a comment.