When you added all of those comments, do you remember if you also clicked on the green "Send" button? If you didn't click on that button, the comments would never have been saved completely, and only existed in your browser's cache temporarily. If that cache gets cleared, the comments are lost.
It sounds like that might be what happened here, and as the comments never made it to Trello's servers, they won't be recoverable, unfortunately! I'm sorry!
This community is celebrating its one-year anniversary and Atlassian co-founder Mike Cannon-Brookes has all the feels.Read more
You’re invited to our first ever Trello User Groups Good news for current and aspiring Trello enthusiasts! We’re launching Trello User Groups so that you can network, share ideas, solve ...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs