Anyone putting any trust into Reddit is fooling themselves. Its not only political subs, other subs are also astroturfed, they are just more subtle about it. There are plenty of examples from places everything like /r/buyitforlife(where you discover the lies after you get burned), to bigger subs like /r/technology(which push certain agendas devoid of facts). You'd have to go sub by sub and piece out the blatant lies, or you could walk away from the platform understanding that the design is fundamentally flawed and was designed for an era of the internet that no longer exists.