Quote Originally Posted by Moorea View Post
doing different things on key up and down is imo crossing a line
I initially thought this, too, but I'm less concerned about it after seeing that the addon API supports it[1]. As far as I know, this is what's used by GnomeSequencer2 for its differing actions on key press vs key release. I do agree that it's a suspicious area and will be keeping an eye on whether Blizzard changes their mind about this. If they ever restricted the API around it, I'd take that as a clear sign.

[1]: https://wowwiki.fandom.com/wiki/UIHANDLER_OnKeyDown, https://wowwiki.fandom.com/wiki/UIHANDLER_OnKeyUp