I think the people who say it is a selfish act have not suffered from extreme depression.
I also think he had a mind which would not switch off, which came across in his work and interviews. I should imagine that is very tiring and frustrating and could probably cause anger plus a tendency to use drugs/drink to switch the mind off for a while. Other comedians suffered, Spike Milligan, Stephen Fry, possibly Eddie Izzard. All very intelligent people. they pay and have paid very highly for their talent. Spike Milligan wrote a book about depression, Stephen Fry has attempted suicide twice, thankfully unsuccessfully. Eddie Izzard says he does not suffer depression but his mind is extremely quick and must, at times, be hard to switch it off for peace. We all know what it is like to be around a young child for a time when they are chatting twenty to the dozen, think of your mind doing this all the time with no rest.
If his death has made one person stop and think about committing suicide, then he goes on helping people like he did in life, helping many charities in his time with us.
Secret Cinema and Mind together are putting on a screening of Dead Poets Society also with an In Memoriam of Robin's work along with poems, live music and performances with special guests. All profits going to MIND.
He was a beautiful, caring, funny man with a twinkle in his eye that meant mischief in whatever he did. A seemingly perfectionist in his craft, wanting to get it right for his audience.
I, for one, will forever appreciate and love him, even though he is now entertaining the big man himself.