My girlfriend just starting playing League so we've been playing a lot of ARAM as she prefers it and the amount of bots is incredible. When I say bots I do actually mean bots not just mistaking them for bad players, at the start of every game they group up in the same spot and start bugging out because they all want to be on the same pixels as each other. Then as soon as the creeps come in they all move at the same time and follow the creep as in the enemy tower and fire off their abilities as they go. One game the entire enemy team were bots, they also usually only buy 3 items no matter how much gold they have.
Is it worth reporting them?, it seems like the obvious thing to do but if I'm honest I can't see anything actually happening to them because it would have already.