i have in the past, and its usually met with them asking me to leave. and before anyone asks, no, i don't join as a second gunner, and i'm not the type to spite someone by simply staying in the lobby when i'm not wanted there, i just move on to the next quick start lobby, where i either get the same reaction or the ships already have gunners, rinse and repeat 3 or 4 more time, then i either rage quit or switch to pilot
and just to be clear, i have no ill will towards the ducks, they are simply the only physical target i can point to, my experience has largely been in PUGs, as i said, i've been stuck one achievement away from leveling for weeks, its not even a hard achievement, i just need to win 5 match's.
i actually understand why they want engineers rather than a gunner, with a little extra coordination you get everything a gunner can bring to the table, AND extra engi tools. its the fact that the mechanics of the game cause this sort of reaction in its community that's frustrating me. imagine being new to the game again, whats the class that everyone is going to want to play? its the gunner, and then you get people insulting you for picking that class, telling you to play a class that you probably have no idea how to play, i couldn't tell you how many newcomers i've taught how to engi in the last 3 weeks.