Well look at that:
All the cares I give. I could slip in the shower and die, I could walk outside to get the mail and die, I could have a heart attack despite never drinking them. I could have cancer without doing most cancer causing things. Point is hey it's fine you don't like them but why care what others do? I like the sugar free ones for flavor and I admit energy. Truth is I am "addicted" to a pre workout as well. At my age with life as busy as it is and such I need the energy. Yes it's an addiction because I have gotten used to them and feel I need them but I have done workouts without them and it sucks so for me, in moderation, I will use forever.
In fact I talked to my doctor last checkup and I was honest with him and told him everything I use. He said in moderation there is no evidence that in a normal person with no prior issue or anything caffeine is fine as is creatine and high protein diets. I mostly asked because of my disease and he still said not an issue. For those with already with health issues than may be a problem.