Same with making a post. I accidentally cancel making a comment all the time while simply trying to select text.

Like this:

I select some text and them try to drag that little blue tear drop on the left to change the selection and invariably just close the comment editor. It’s so frustrating.

I have all gestures disabled because all they do is fire by accident, but I can’t see any way to disable this one.

Here is a screenshot of it in action. I turned on the developer option to show touches, and you can see how wide the activation area is for dragging from the left.