Disclaimer: This is a thought-experiment and I have no intention of releasing any data this way, nor do I have any interesting data to release.
Let's say that a person wants to share data anonymously in a way that people can download the data without it linking back to the source. Let's say the data wasn't illegally obtained, it's not illegal to hold a copy of the data (at least in the US and Europe), the data is of general interest to the public, and it's a modest size (on the order of 1GB).
The typical data-releasing ideas aren't appropriate:
pastebin has an upload max of 0.5 MB
github, datahub.io, etc all require registration of some sort. I could create fake accounts and fake email addresses, but let's say that requires too much effort or I'm too paranoid.
wikileaks wouldn't be interested. Let's say it's not whistle-blower data or anything even close to being controversial.
anonymous uses torrents, which could work, except let's say the person doesn't want to get involved with darknet stuff.
What are some ways a person can anonymously release data that doesn't track back to the source?