Comments are a great way to engage with other athletes on Strava. Athletes can leave comments on activities, achievements, Challenge, Race, or Goal entries and completions, etc.
Follow the steps below to give and receive comments on Strava:
From your activity feed, you can both see how many comments an activity has already received, and add your own:
In the screenshot above, clicking "See all 5 comments" will expand the in-Feed display to show all comments on that activity - meaning it will take up more room in your Feed. Clicking the comment icon above the displayed comments will display a lightbox of the event's social activity - from which you can again add your own comments:
Note that if this is your own activity or comment, you will see an [X] in line with your comment when you move your cursor over it - this will allow you to delete the comment. From an activity page, you can view the same lightbox by clicking the Comments icon at the top of the page:
You can manage your Notifications regarding Comments at your Email Preferences Settings page. Please note that if you comment on or give kudos to an activity, you have effectively 'subscribed' to that activity's conversation; and if your settings allow it you will receive a notification of every subsequent comment. At this time the only way to 'unsubscribe' yourself from that conversation is to delete your comment as shown above.