I've noticed that over the past year or so there seems to be a culture of self-congratulation breaking out on the PA. A recent BA flight to JFK:
30 minutes out PA: "Ladies and Gentlemen, we will shortly be landing in New York and I'd like to take this opportunity to thank the crew for all their hard work....
Take your seats for landing PA: "Cabin Crew, thanks again for all your hard work.., please take your seats for landing...".
Finally, from the flight deck: "Cabin Crew, thanks very much for all your hard work, doors to manual..."