We had a huge discussion in December 2022 about this.
And after I wrote about it in TidBITS, additional comments encouraged me to refine it further.
As I wrote in that thread:
I also put some effort into adding the tooltips over the icons. Here’s how I interpret them:
Good post (points for contributing and making TidBITS Talk more valuable)
I agree (best used on a solution or opinion with which you agree)
Amusing (for funny posts)
Thank You! (rather than creating another post to say just that)
Confused (for when you don’t understand what’s being said or find it confusing)
I disagree (for when you disagree with something that was said but don’t wish to argue)
Note that I very much do not see as Dislike because that gets dangerously close to commenting on the person rather than the post. Which we never do, right?
The main alternative I can see for the is (the interrobang), perhaps with a tooltip of “Really?”
Good post (points for contributing and making TidBITS Talk more valuable)
I agree (best used on a solution or opinion with which you agree)
Amusing (for funny posts)
Thank You! (rather than creating another post to say just that)
Confused (for when you don’t understand what’s being said or find it confusing)
I disagree (for when you disagree with something that was said but don’t wish to argue)
(the interrobang), perhaps with a tooltip of “Really?”