How to protect your ideas in the digital age

If we're in the idea business, how to protect those ideas?

One way is to misuse trademark law. With the help of search engines, greedy lawyers who charge by the letter are busy sending claim letters to anyone who even comes close to using a word or phrase they believe their client 'owns'. News flash: trademark law is designed to make it clear who makes a good or a service. It's a mark we put on something we create to indicate the source of the thing, not the inventor of a word or even a...