Just sharing here how I deleted all content from my 30k+ karma account. It's an easy to use, open source, and private way to do it, check out PowerDeleteSuite.
No need to install anything, just bookmark the JS script and run it. This tool was posted here almost 3 weeks ago, but I thought of enforcing it, with the great blackout approaching. The best thing about PDS is that it should remain working since it doesn't use the API.
PDS is able to export your comments, but to export saved items you might want to check Rexport - this one uses the API however, so maybe run it in within the next hours.
I hate having to do this, but Reddit doesn't deserve the community it has.
As much as I hate reddit now, I wish people wouldn't do this. It's gonna make googling shit awful soon
That's the point. I use Google to search for things on reddit, too, and I'm also disappointed, but protests aren't supposed to be convenient. If users decide that they no longer want their comments to be marketable for reddit, that's their decision.
There's always the wayback machine/internet archive