Gain... Relief
Finally can one express themselves, or write about the things (good and bad) that they've been through and find that they're not alone, someone somewhere has been through a similar situation and they may be able to empathize or advise a person.
This world lacks empathy and sometimes we can't seek out to vent or express these low moments in our lives with those who surround us in person because it will turn into something that defines us. When in reality we are much more than just one circumstance or event in our lives.