when a reply is done into a post, it appear twice

It is curious that yesterday wrongly setting a query, i have get the same exact result.
I had think it was a stupid thing to do it like this, anyway it is very easy to make phpBB to be exactly like Discourse also about this aspect.
But i am really thinking if it is a good ok feature. Maybe can be offered as option.
The one or the other. Because to get the one or the other is just a line of code of difference.
I also looked into the time scroll line of discourse that seem to me returning often approximate and not exact time values.
Asking myself how could be hard to have a similar one applied in phpBB
