I don't like the thought of suicide, and it is very selfish. People in the town near where I live have threatened to jump off multi-storey car parks and have disrupted the 5pm traffic for about 3 hours because the police had to close off the roads. Anyone going through there would later say on Facebook that they'd wished the person had jumped, and I don't blame them. The person was being selfish, and in their selfishness, angered a lot of people.
I have thought about suicide, but have never come close to actually doing it. I used to get bullied a lot in the past, but the most I've ever done about it is nearly move schools. The bullying got sorted out after that.
One of my exes became a lesbian 3 years after we broke up, and dated a girl for 6 months who, apparently, suffered from depression, had an anxiety disorder and was bipolar. This girl would cut herself, get in public arguments with my ex and on one occasion, sent all her best friends Facebook messages saying how much she loved them, as if she was going to commit suicide. It got everybody worried and then she ended up not doing it, and she had done this on many, many other occasions.
Someone in my college about a year ago actually did end up committing suicide. There was a commemorative rugby game in her memory, which 500 people turned up to (I didn't know her, so didn't go). It was nice for them to do that for her, but from what I'd heard from a lot of people in my college, she killed herself because her relationship ended. That's something she could have recovered from, she was only 18!
I don't think suicide is a good thing, or even a sensible thing. Many problems can be sorted out, even if they do take a while. Suicide just shows how selfish people are, and how they'd rather die than find people who can help them.