I actually stumbled on a pre LFG session once before Crota while trying to get a vault run completed.
It was a series of players in the tower who sent an invite out rather than a volley, and actually placed a description in the message.
I joined out of curiosity.
Immediately I was greeted by not one but 5 squeekers, who immediately apologized for being "chipmunks" and asked if I would come with them regardless.
I really didn't care, so long as we managed things.
Now this was new Atheon days, and a few of these guys were 28's and 29's.
I was anticipating a mess but was also bored and thought why not.
It turned out to be the cleanest run I had been in to date.
I do wish more would post with experiences like we've had, and bravo.
I had a similar situation, thought I was playing with a couple of squeakers, until I realized one of them had 'Kate' in their gamertag lol they were girls haha