"Rants and comments can only be edited for 5 mins after they are posted."

5 mins is not fair; I think it must be at least 30 mins (or an hour).

Agreed. Or add an feature to view the pics you attached. It can easily happen that you attach the wrong picture...

Imagine this:
- you post cat picture 😸
- someone commented: "Aww..cute!" 😍
- 29 min later, you change it to a picture of you 👽
- poor commenter only realize it when it's too late and sob at the corner. 😭
But, if we only have 5 min, commenters only need to make sure 5 min has passed before commenting.