Hey there!
We often times have comments that belong to a certain task, but also require us to also post an additional "fyi" comment in the project info panel comment section to inform those users who are not part of the task. You could argue that could just post these comments in the project info panel comment section, but that would be way less organized and would take away the benefit having the project divided in tasks has.
It would probably make sense to include the task name and link above or below that comment in the project info panel comment section.
Thanks in advance and best regards!