You are too strict with your making Guy..
Try to be a little flexible.
Because of 1 or 2 missing piece in an explanation cannot make you down mark somebody this bad.
You just find pleasure in down marking students. How bad is my markdown presentation i cannot get a 1.5.

Omoh..

This isn't it at all.
I cannot write all this which I know is in line with the topic and you give me 0.5 I am not that dumb.
I am really struggling here holding my self from using words that aren't that good, we are all lucky we cant directly message someone here.

In your Remark you said

the student also answered. All the questions in his/her own words.

How come originality is 1 not 1.5 or something else?
Try to adjust your system ans stop taking things a little too serious abeg!!