She is a pretty talented actress, Katniss and Winters bone were incredible roles for her. I loved the Hunger games films.
I don't think anything has definitively been proven about her and Weinstein? Its an area where there were far too many rumours... and not enough facts. She might have been the kind of girl...who flirts like mad....but who knows how to let creeps down gently without causing offense, maybe using humour? He was a bully, and a liar, but there are some who are able to stand up to bullies, and work with them? (Not that this justifies his actions- im glad he went down.......)
But I dont think he helped her career, as he tried to market her in films like Silver linings playbook, or American Hustle, where she played vamp type roles, which contradicted completely her role as Katniss.
Then she priced herself out of the market, and became too famous...and too contradictory! She acted in too many different genres...edgy films like Winters bone, blockbusters like The Hunger Games and the X men, So she didnt have a clear market or fans to appeal to, Then she did a series of badly recieved films like Mother....which left her without anywhere else to go!