On the verge of extinction, the SF Chronicle and Newsday decide, after “emergency” meetings, to put up paywalls. It’s not a risky move, any more than it would be risky for a hospice-bound cancer patient to start an aggressive course of Jack Daniel’s therapy. And, it’s about as likely to work. There might well be examples of businesses that bought their way back from the brink by raising prices. I’ve just never seen one.