Welcome to HubSpot and sorry for the delayed response.
I don't work as closely with tasks so not too sure on the specifics there but I can see how that would be useful for users! That said, I would definitely reccomend creating a fresh post about that on the Ideas Forum as this will help the discoverability for both users and internal HubSpotters who would be thinking about that functionality.
I also passed this feedback along to the appropriate team internally to get it on their radar 🙂
@rbarreca the team that handles tasks is looking into adding commenting to match the functionality on notes.
@josephglbrt we are planning on adding the comment body to comment notifications and also linking you directly to the engagement the comment appears on. No ETA on this yet but our team is looking to get this done.
As of today, you can now comment on any note, meeting, call or logged activity. It is not possible to comment on an email or task activity at this time. The team is looking in to adding this functionality on tasks.
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