Say I am a British academic, who happens to have a blog, where I comment on my research and other people's research. Naturally, I do not want to infringe copyrights on any type, including intellectual property (IP). Yet, it seems that the IP law is "more loose" in the US than in the UK. In effect, whereas the US law is defined on positive terms ("this is what you cannot do"), the UK is defined on negative terms ("this is what you can do").
Just for the sake of minimizing potential, unintended infringement of IP copyrights in my blog, should I register my website in the US, or is that irrelevant?