Ask HN: Risks (and benefits) of publishing my Facebook password

Facebook is understood to be fairly toxic, for various reasons. Rather than simply deleting my account, I would rather actually starve them of the datapoint that "this account was deleted on dd/mm/yy", and would prefer to simply voluntarily sabotage it. Before doing so, however, I'm curious as to the legal and other risks that might be incurred. Is doing so legal? I don't use Facebook as an authentication provider, so that is not a risk. There may be other technical reasons not to, however, that I haven't considered yet.