Maybe there should be a setting for hiding such short replies or something like "shadow ban", you can write "thanks" or "This." and only person posting it will see their own "thanks".
Downside is that there is still some cost to it, like writing "please" and "thank you" to LLM...
The counterargument is that, if you think a post is idiotic, you could say so but, if you don't articulate why in detail, you'll probably be downvoted or modded. So better to just downvote if you care and move on.
