RockLee said:
he had cancer, didn't want to suffer, so he commited suicide...very tragic indeed

...he had AWESOME guitar skills
Cancer?? wasn't he drunk and commited suicide?? I never heard that he had cancer. I know he hepled a girl with cancer, gave her his bone marrow (dunno how you spell that, you know what I mean).
Some say that Pink Spider was his suicide note, It's hard to tell, there are many questions about his death. But I think that if he had cancer, Yoshiki would have said soemthign about it on the funeral, something like "not many know this, but hide was sick, he had cancer... maybe he didn't want to suffer anymore and went down like the legendary man he is..." if anyone wouyld know about hide being sick it would be Yoshiki.
Bald? I didn't see any of that, and if he had a bald spot I think it's more bcuz of the many bleachings he did for the pink colour.
I don't know what to believe, a part of me believes in the pink spider theorie, and I have another one... hide has a song named 'Space monkey....' space monkey is another name for a game where you strangle yourself or somebody until they faint. when they wake up they feel a high and calm, almost like a drug. It is a popular game amongs youth in the US and some have actually died of it. there was this 13 year old boy who tied a rope around his neck and then died of it. It isn't impossible that hide might have been doing the same thing but was drunk and it went very wrong. It might sound a bit weird but it's not impossible.
hide is known for weird lyrics that say one thing and mean another, so you have to read between the lines. But that is just my thought.
The pink spider version makes the most sense to me though.