As someone who has been personally sued after my company went bankrupt, I can tell you that it is not as simple as you paint it. Although I wish it was.
Some more detail: during bankruptcy, anyone that had business with the company can either file an adversary proceeding (essentially a lawsuit within bankruptcy court), and/or can do depositions/discovery (2004 examinations). They can also buys assets of the defunct company as well as legal claims to go after the company officers. Then after bankruptcy they can try to use whatever information, assets and claims they acquired, to sue the company officials personally.
Some more detail: during bankruptcy, anyone that had business with the company can either file an adversary proceeding (essentially a lawsuit within bankruptcy court), and/or can do depositions/discovery (2004 examinations). They can also buys assets of the defunct company as well as legal claims to go after the company officers. Then after bankruptcy they can try to use whatever information, assets and claims they acquired, to sue the company officials personally.