With regard to US copyright law, one important point not mentioned is statutory damages for infringement. Generally, if you are found liable for infringement, you owe "actual damages," that is, the amount of harm you did or profit you gained from the infringement. However, if the copyrighted work was registered, then statutory damages may be available, meaning that you could be liable for up to $200,000, even if you caused no actual damages.

My personal opinion is that this leads to a strange imbalance in the copyright law. If an individual makes a creative work (e.g., a blog post) and makes it available for free, the individual is never going to pay the $60 to register the work. So when someone else comes along and rips off the blog post, the individual only wins actual damages, which the other person argues are minimal because the blog post was up for free anyway.

But if a big corporation makes a creative work for profit, it expects to make more than $60 off the work, so it registers it. So someone who copies the work is suddenly liable for hundreds or thousands of dollars in statutory damages, regardless of the harm actually done.

This seems, to me, to create an unbalanced incentive: works created for profit receive greater protection than works created for free. There are a number of legislative options to fix this, which I will leave to the rest of you to devise.