I've played MOBA's before. I was curious what you meant by lane discipline since there are so many terms and phrases that surround the genre.
Right now in AoV casual, I usually see the ADC in mid - all of them seem to be super mobile. Tank +1 top and a Warrior +1 bottom. Not that anyone is ever in the jungle usually, just that it's 2, 1, 2 for the lane split. I'm trying to work out a good hero for the jungle in AoV because it'd be nice to have some jungle farming going on.
I had a game last night where I got to experience the ADC running into the jungle to steal the junglers kills (I mean, we actually had a Jungler so I was pretty happy). Then rolling into my/others lane just to wipe out a wave and then bounce when 3 enemies show up. All while yelling about how we all suck. I finally turned voice on and said “If you weren’t a kill stealing piece of shit we might all be leveled enough.”
EDIT: Adding on because I missed your second post. They all do it - jump lanes like that. Usually because I'm at +2 towers down, and no other lane is (what? I'm efficient at burning down towers). So they all try to pile on to get the last tower and die horribly because no one has any idea what "focus down the carry" means, or really "focus down one character at a time" and the other team has a smidgen more focus, which ends up with top and bottom getting pushed. My usual gameplan is to push all the way through the towers and then start lane diving the other lanes to help get them pushed. Once all of the lanes are pushed and we're defending moderately well, it's a matter of time from there (the other team screws up and dies which means all heroes pile on and kill the crystal. Super Minions in all lanes etc etc etc).