Highlight vs Pin

Pinning messages will go into an archive of sorts, but still out of sight. Out of sight is usually out of mind. I was wondering about a second option: the ability to highlight a message for X amount of time at the top of a channel as an overlay. That way people will be able to see it even if the message is pushed up, and they'll be able to click it for quicker navigation, similar to a pin but able to be SEEN.