Cybersuicide

Reports such as these have underscored public health concerns about a cybersuicide epidemic […]

There are also very dark chapters that have opened with the disturbing phenomenon of "cybersuicide," in which strangers meet online, form group suicide pacts, and then meet in person to execute their macabre plan together.

Self-constructed personae online (unlike the offline variety) can be abandoned or re-created at will; cybersuicide may simply provide the clearest path to a fresh start.