Yes, it's a good solution.
No, this won't work.
Okay so a lot of people are dissappointed that Bungie has not put in a [i]proximity chat[/i] option. Bungie has stated that they want Destiny to be a "[i]social experience[/i]", but have excluded the ability to hear anyone who isn't in your fireteam. There is also no option to turn it on. My simple proposal is to add a "[b]Chat[/b]" option to the menu that pops up when you "[b]Inspect Player[/b]". (If you don't know how to do this, watch the video and skip to 00:39) When enabled, the person will be allowed to communicate with you in proximity chat until the end of the session or when one of you leaves. Please leave input if you agree that this is a good idea , [i]that way Bungie can hear.[/i]