What happens to the date of the replies? Do they become older than the first post? If so, this has two obvious problems and one less-obvious one:
- It is kind of confusing.
- It reveals that the topic was private and some subset of people had prior discussion (and gives an indication of how long)
- If, in the future, a different topic is merged into the scheduled one and “preserve chronological order” is selected, _one of those replies will suddenly become the “OP”