ao3commentoftheday:

• readers can be shy, too. They worry about commenting the same way that writers worry about posting fic. Replying lets them know they “did it right”
• readers feel as overjoyed when they get replies as writers feel when they get comments
• you can have a lot of fun and maybe even make a new friend
• you can’t give kudos to comments, and there are some comments that really deserve it
• just to say “thanks” – because not all readers comment and you appreciate the ones who do