Hi ! A few days ago I was listening to real life ATC and I think that it would be a great idea for pilots to speak to the ATC on expert server exactly as real life ! Just imagine how realistic it would be. On the ATC page there would be a button that activates your mic and let you talk to the ATC, once you are done, just release the button.
That is what IFSIM and IFVATC is for. People would troll and be very inappropriate. We cannot have this
Plus this is a duplicate
Continuing from @Aussie_Wombat, the language barrier would be really hard to overcome.