I believe I've addressed those licenses multiple times in my comment. you're not responsible for the support of the software, at the same time, you're not free of all responsibility for it either (regardless of what you say in your license). A license is not a contract either. there is a reason even eula's sometimes require you to actually scroll through them before you can hit accept. and even then, eula's have been thrown out of court plenty. "I'm not responsible" does not absolve of you of responsibility, you don't get to decide that, laws decide in court. but in terms of ethics, it's even more dire, if you know what impact your action or inaction will have, legalese can hardly excuse ethical obligations.