I hear this a lot (not just directed at DL, you hear the same thing in complaints about UA and AA (and others)) and I honestly have no idea what it means. Like, I can imagine a scenario where an FA would go "above and beyond" but it would require some extraordinary circumstances to be present first. On an ordinary flight with no noteworthy happenings, I basically want the FAs to leave me alone.

But I get it, some people want constant fawning attention from the servants, ok. Even in that case, I still don't know what "above and beyond" would look like beyond the already present complaints about service (e.g. "they let my glass get somewhat below 3/4 full before refilling it all the way to the brim" or "they plopped my dinner down").