> I like the idea someone posted on HN a few months ago; it should be possible to "opt out" of the patent system entirely.
This is a stupid idea.
Basically, anyone who does actually invent something that's legitimately worth patenting (by whatever metric you please), then patents it and (as required by the process of patenting) details the invention, somebody can just come along and take that work and use it and the inventor gets screwed.
Fix the patent system or ditch it. The opt-out idea, though, is nonsensical.