Lol I know dozens of people that have used seafoam for decades with zero issues.
Heck I have gallons of it and use it in my snowmobiles, dirt bikes, boat, car, mowers and snowblowers.
Been using it since the 80s.
One time in 1993 I didn't use it one time in my V-Max and the carbs gummed up. The other 14 years I owned that bike using seafoam I had zero issues.
I currently have it in my 5 bikes, and my stored car. I have zero concerns. 🙂