>>Does this make sense?
>
>I have adjusted it. When replying, if the member of the original message has twited the member who is about to reply, a redirect to the original message with a message explaining it will be shown.

I think this should be a configurable option. In other words, I don't think it's a correct behavior to be restricted in posting messages depending on other person's will. But if this is the behavior Denis wants, he may have it as an option. For myself I would prefer the original behavior without any restrictions.