Indeed, how could they be?
That means that ID of a reply is different depending on where you see it.
So the ID of this post is:
mastodon. social /@ edent/ 123456
But when you see it on your server, it might appear as:
your. server /@ edent/ 987654
The #MastodonAPI copes with this really well. But it is a mite confusing to get one's head around.
@Edent CW don’t appear in full on my client which means I didn’t have an easy way of seeing your initial point when I was reading the toot. Not sure if I’m missing something (probably) or if that’s just the way it is. Also my replies will default to using the same CW