Comment/Leave Comment Confusion

I do not understand why the questions/answer pages have a “comment” then a “leave a comment” at the top and have it again under the question and the answer and then “your answer” under that.

Having all of these fields is very confusing. The labels do not make sense. Can you please explain? And how can I change these?

I want to remove the comment/leave a comment under the “question” section and only have it at the bottom of the page because it makes to too hard for people to figure out where the actual answer is.

And I want to change the word “comment” to “title” or something that is less confusing.

I had to remove the ability for others to answer because the page look really bad. I want people to answer, but I cannot have that with all of the weird comment areas on there.

The page I need help with: [log in to see the link]