Suggested improvement: when clicking 'Reply to this post' you can see the original post above your reply box, but it's not included when you post your reply, so others cannot see to which post you are replying.
The English Chess Forum has the option of simply posting a new comment in a thread without it being a reply, or, by first clicking on a " sign, to make the 'replied to' post visible above your own post. The original post can be edited so you can choose to show just the relevant bit.
Not sure how easy this would be to set up.