When creating a case, I often don't spell all the information I consider useful at once, for any tiredness or emotional reason. So I am as often stacking comments to my own case, prior to get any reply from support team. Reply that can take time, highly depending on severity. This brings absolutely no clarity to support tickets and is a later pain to drill down into.

In any forum, one has ability to edit and modify a post until one another replied. Why can't MongoDB Support cases do?