Usually the person doing it is in so much mental pain and anguish that all they can think of is getting the pain to stop.

It’s really hard to commit suicide. You really have to be in a bad spot to do it.

Having said all that, yes some do it to leave a mess, some do it to punish others. Can’t say I’ve ever meet people like that but i know they exist. The people I’ve interacted with mostly just want the bad things to stop.

PS: No, I’m not a therapist, just someone who’s life journey went to a dark place, but managed to survive it without pulling the trigger.