Expert ? Were you saying this as some proffesional in field (psychologyst or what), or as one INFP?
anyway, I'm really annoyed by such misbeliefs, according to some studies most people who commit suicide do tell someone they plan to before, and such statments as yours make people believe that those people are only attention whoring, without true intentions. I think that's just not a place for such big generalisations.
This is true. I think it's counterproductive to assume that people who share those thoughts and feelings are just borderline personality disorder attention whores. It's not always clear cut either; the attention getting behavior to see if people still care about you isn't necessarily meant to jerk others around. If your gut (Fi) is screaming at you you that people think you are an idiotic, worthless burden, but something else (a more reasonable function?) reminds you that there were times where others *appeared* to care, it's natural to try to test it to see if your life really is meaningless enough to end.
I've cut to get attention (when I was a preteen) and have attempted suicide without telling anyone beforehand. I know this is only my own experience as an INFP, but I'll try to explain. I almost always self-isolate and withdraw when I spiral into depression. The further I slip away from people and stop calling/etc, the more *they* feel rejected and/or the more they try to respect the space they think I need. But I can't tell you how impossible it is at these points for me to see that I reject them first: it just seems more and more likely that I'm unloved. I lose friends. This is very draining (even if it is extremely low-key externally - I emote far more here than IRL) and disheartening. It's hard to ask for help not only because I often don't feel worthy of the bother at these points, but because I'm worried about wearing out the good graces and patience of those around me.
Regarding both the "Fi says it's the right thing to do" by suicide vs. the selfish violation of principles suicide:
The "viability" of the option isn't a black and white issue all the time. Fi can tell you that it's right not to be a burden on loved ones and deadweight in society while also telling you that it's not right to leave them with the responsibility of spending time and money on moving your stuff, finding a new roommate, arranging your funeral and burial, etc. Cancerous Fi can't make a "right" choice in this case. It can also be conflicting when deciding whether to ask for help; telling someone is what you would want your loved ones to do and you don't want to be a hypocrite, but saying something puts a heavy burden on the listener. Fi doesn't give a clear answer here.
I stopped posing for about 6 months and I promised myself that I wouldn't start posting again unless I could get rid of the emo talk. But I saw this thread and I felt I had to say something about a topic that is personal to me and that I feel is misunderstood. I'm just being honest and I hope it's not too much.