there should be some sort of a quote function. a lot of times in the discussions you see posts beginning with @somebody, signifying that they are replying specifically to what the person said. this makes it so that you have to go back until you find which one of the posts that they are talking about. it would be a lot easier if posts had a button or something that you could click so that it automatically sets up something that makes your post kinda like:
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| username said:
| ________________
| here would say what the other person wrote
|
|__________________
|
| and here is where your reply would go