Ok, i have established why people are having trouble leaving comments or even finding where to comment on here. SO here are the steps you need to take.
To comment you need to open up the post you want to comment on seperatly from the main home page. All that means is that you need to click on the post title, the page will open up and if you scroll to the bottom of that page you should now see the comment field ready for you to comment.
The reason it is confusing is because there is now way to comment while all the posts are listed one after the other. You HAVE to open each post up on it’s own. I can’t change that unfortunately, but hopefully that makes it a bit clearer for people who were having trouble.