Intellectual property doesn't exist shocker

So whilst surfing some blogs (or is it blawgs these days) I came across a number of interesting opinions on Computer World UK, most of their bloggers believe that Intellectual Property shouldn't (and in fact in some cases doesn't) exist.

For example: http://www.computerworlduk.com/toolbox/open-source/blogs/index.cfm?entryid=1492&blogid=14

Now I understand their point in that yes open source is fantastic but quite simply without Intellectual Property rights it would be commercially impossible for companies to invest in product development, bands to be able to live off their music, writers unable to live off of their works. All of these vocations are (apparently) hard enough to get by with anyway, if IP rights were not protected then quite simply someone else could come along and copy their products, music, work etc.

I was looking forward to commenting on their blogs in order to fully gauge their opinions but none of their posts seem to allow comments, shame.