As part of the roll-out of new post notices, questions that were migrated now show a notice at the top indicating that they were migrated.
I ran across a question today that is seven years old. After seven years, there is no need to highlight prominently that the question originated on a different site. This is the very first thing we are showing people who visit that page -- yet it's one of the least important things about the question.
Suggestion: The notice indicating that a question was migrated from somewhere else should be removed after a fixed period of time (say, 30 days).
It's unfortunate that this notice is shown at the top of questions. It's not what we should lead off with. It's not relevant any longer (who cares? it's irrelevant; it might have been relevant when it was first migrated, but seven years now). It's distracting. It also potentially leaves the impression that there is something wrong with the question or some reason why it needs to be marked, marking the question in perpetuity.
A similar request was made two years ago (Hide notice for migrated questions after 30 days). However, that was before the new post notices. Back then, the "migrated" notice was shown at the bottom, underneath the question -- so the first thing that people saw was the question, and the "migrated" notice was less problematic. Now, that notice has been moved to the top, above the body of the question, and it is more problematic.
Note: I'm talking about the post notice on the destination site, not on the source site.