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Not when everything you put in is Public.

it was public on the site, not browseable. you needed to know the explicit url to your profile. there simply was no structure for it.

No structure? It was www.oink.com/{nick}, how is that not a structure? That's exactly the same structure as the zip.

Respect your users.

Is it disrespectful that Twitter makes my tweets publicly available via their API?

That doesn't answer my question.

"Respect your users" is not a question.

You didn't pose one. I did, and you ignored it.