You're skipping the concept of communal concepts though.
I have the message I get from my parents, the message I get from "everyone else" (which is really several messages from various groups), and the message I determine for myself. That latter is heavily influenced by what the other messages say. (See the other current HN article about student drinking being decided by how much they think others are drinking).
To simply say "Choose for yourself and your children, I'll do the same, and we shouldn't talk about it" is a de facto declaration that society as a whole approves of the behavior/activity.
On this particular issue I honestly have no idea where I stand...I know of and believe the impact that (deliberately or inadvertently) "encouraging" suicide has (or even just coverage)...but I also don't like the idea of being against discussing and exploring ideas. The solution is to DISCUSS what to do, not just pretend we're all fully informed individualists.