In T15048#2234, @eax wrote:

IMHO if we are to do this it should be similar to "comment reactions" from github. Useful for e.g., +1 -1 but shouldn't generate visible transactions on the rest of the page.

In T15048#2214, @20after4 wrote:

Does anyone else feel that this is not a good idea? Seems like the consensus here is that it's at least acceptable if not desirable to have.

Does anyone else feel that this is not a good idea? Seems like the consensus here is that it's at least acceptable if not desirable to have.

I did a bit of digging through the source code and it looks like tokens are implemented in an incredibly generic way, such that it wouldn't be at all difficult to add tokens to comments. I think the hardest part will be integrating it with the UI.