this is really possible to happen for everyone that promoting scam investment . Who know if the money he invested is the only money they have and because they trust you as promoters and promising them to earn good return they invest. they invest all their money because they trust you with your words and then suddenly it turn to be scam , what do you think will be the feelings of the investors invested all those money they have . Its angry and that angry turns the feeling to kill the persons they think the reasons why they feel miserable life and the reasons why he lost all of their money.
Indeed. People who accidentally promotes scam projects would be trouble because if investors would know that you are promoting a scam projects they could put all the blame to you even you are only a promoter. So before we promote a project or a coin we should also check it first if it is legitimate, not only investors because other people would think that we are part of their scheme.