There's nothing stopping you from walking on if your availabe.
And again, I'm a busy guy, I got almost a whole hour to myself today.
Ahh... so you're looking for instant gratification just like the "players these days" that you often go on and on about.
Where did I ever say anything against players wanting instant gratification? Some players have very little time to jump into a game run a few flights and then they have other things to do. I'm lucky and get to block out some time here and there to put in a few hours. Joining a scenario is a commitment I can't tie myself down to. I suppose I could walk on now and then but I don't think it would be the same.
So you'd rather join a mission that will likely become a hoard than to start your own "complex" mission like the ones you espouse?
I join hoping that is DOESN'T become a horde. I ran missions for years both here and in AW. I would up a buff and circle at a high alt in the general area we were running ops and co-ordinate everything from there. Rarely did I fight, nor did I even drop bombs. I was busy running the mission. These days I prefer to fly and fight in the mission instead of running them. So yes I JOIN missions instead of run them.