This is true. SI is about coping with pain. SUI is about ending pain. However, people who SI are at a high risk for accidental SUI. So technically, SI can be much more serious than being obese or a smoker.

My T and Pdoc are actually more worried about my SI than my SUI thoughts. The last time I SI'ed, I required medical attention.

But I don't think anyone is saying a T can't have a past with SI. Most just don't want to know about it/see it.