Correct phraseology..please!...and we are worried about polite introductions!
Lets just adopt a point system for every airline that forgets,can't be bothered or simply doesn't understand why we say the words Flight Level before the readback of the cleared level. ..Then we can add extra points for not waiting before transmitting on a new frequency!!!!!:ugh:

You mean like “ahhh, yeah we’re outa two one oh for eight and ahhh, yeah we got the info...”

Tally Bally Ho!

It's similar to the use of your indicator in your car,you know,that little stick by the side of the steering column that our wives have never noticed..(oops,more incoming!!!). One day it may save a few lives.
Only in our profession,just one day in our career,on that dark and dirty night,unambiguous phraseologymay just save 599 other lives.