@richlv Tbh, I am not sure. Maybe it also depends on the client used to send messages? Or maybe my client (Tusky) doesnt understand a specific reply-format?

Usually, replies should have a username tag in the message, I think, which I cannot see. So maybe this automatically makes it a detached post?

Maybe @ConnyDuck , one of the #tusky devs, has more insights into this behaviour?