Re: VinceH - a fair point
"I write software as well, I'm fairly sure that some of the assembler I write has been written before (and I've been doing it since the late 70's), just how many combinations of 0's and 1's can you get, jeez I just want the value on a pin."
I think that's best answered with a well known quote from Aristotle: The whole is greater than the sum of its parts.
"Give us a clue then, how much of your stuff has been used (without your permission) by others ?"
There have been a few isolated instances, which have been resolved.
One case with software was a result of a misunderstanding between me and two other parties.
Another was with some photographs, and I had to get a bit threatening with the organisation involved, but faced with legal action they removed the pictures from their website. I could have pushed for some payment for the time they had them online, but I'm satisfied they were removed.
The first example, though, which left me rather bemused at the time (1991/2ish?), involved some budget games I sold at the time - not realising I was the programmer, and person behind the software company selling them, someone actually offered to give me copies of the games that he had bought... from me! I was very restrained and polite, and we had a good laugh about it - but I've no way of knowing if he (or anyone else) ever copied them for others.
"'I doubt I would have ever bothered' isn't evidence, in fact I think you would have persevered (and succeeded) whatever obstacles were put in your way."
That's just an assumption, though, and not something either you or I can say with any certainty. It's possible, sure - but I think that for it to have been practical, there would need to be some way to legally protect what I've created, to ensure some means of making an income for it. Such as a legally protected right to copy and sell what I produce; a right that nobody else has unless I bestow such a right upon them. We could call this right to copy a copyright.
If not that, there would need to be something else in place - and, right now, I can't imagine what that could possibly be. So as far as I'm concerned, if you want to argue against copyright, a part of that argument needs to include an alternative.
I will add that I am not opposed to making the life of copyright protection much shorter than it currently is - because it is too long. And more protection needs to be given to individuals rather than corporate entities, because its the latter who take the piddle.