Well, not really related at all I don't think. There's a fairly sizeable community of guys doing this - encouraging and validating each other. Dylan is/was just one member of that community of idiots with no more influence than any other. Social media is the killer here, as it's enabled all these guys to find each other and normalise their body modification desires.A death indirectly related to Dylan. That's another to add to the count.
I think the similarity here is between Adam and Tank - who both seemed to be individuals who craved affection and love from others. They wove together that insecurity with their body image insecurities and created the means for their own deaths.