I am not sure what you are referring to. I see 2 categories:
Sometimes something may surprise you in a way that should be fixed. I get that.
Sometimes it is only surprising because people used abother platforms and expects it to work like what one used before.
One can try to emulate the "before". That is quite exhausting.
Or one does it differently and hope that people adapt.
I am using a Linux desktop which will make Windows users frustrated. But Windows frustrates me a lot!
@petros Well, the example from the OP is about account migration, which doesn't even exist on other platforms, so it's clearly in the first category.
There are a good number of things that just don't make sense for normal social media use. e.g. If I reply to a followers-only post, only *my* followers (and named people) can see my reply. Anyone trying to follow the wider conversation with limited follows can't. This exposes the internal model at the cost of usefulness.