After so many failed attempts, planning ahead for the next failure doesn't strike me as too weird.
To me, all these "failures" are speaking volumes, as is considering the next attempt a failure from the start. There is no real desire or intention to off herself. I think it's true in your case too Turn. I know you must relate a lot to sin because you've described similar issues, but I think these suicide thoughts and attempts are more of a compulsion/obsession. Like obsessive ideas, or intrusive thoughts. You have ocd, sin is autistic and seems ocd too. Remember how she was with Linux.
"Can Sin be for real and not just talking about suicide because it's edgy?"
She cares about this place, and the interaction here, despite whatever she claims. I was surprised when I saw in a screenshot of hers about 7 private chats. I think it could be a cry for attention, her "special thing", you know. No one used to take her seriously with the linux crap, but I know for a fact a lot have shown interest and support regarding her suicide attempts. It's not unlikely the attention she gets here fuels the suicide thoughts, the way she talks about them, the way she fucking took a pic of her sticking smth in a socket (I mean come on, who the fuck does that in the middle of an MEANT suicide attempt, it's like someone throwing themselves off a building and thinking of taking a selfie in the air and posting it on instagram). I dunno, something in my gut feeling tells me there's smth else that motivates sin with her posts here.
Do you think that suicidal people are always that way, from the start?
You don;t find the abrupt switch suspicious? I dunno, depression isn't exactly like food poisoning... Sin turned almost over night from nerdy linux sin into sin who posts suicide stuff all over now.