Petitions don't in themselves make any significant difference. But for someone to sign a petition is a step towards doing something more effective, such as giving up using the company, and talking to other people so that maybe they do the same.

If the result of publicity and of people avoiding using Mudcat is seen as hitting their profit, things can change.

Obviously the main blame for allowing tax structures that make it possible for wealthy companies to avoid paying taxes falls on the governments involved. but the guilt for taking advantage of that kind of thing lies on the companies that do so. It's a kind of legalised theft, and the fact that theft is legal, or that the authorities don't enforce the law adequately, doesn't stop it being wrong.

I accept that that that's a kind of morality which many people do not recognise. But it's worth considering some of the other things that have been, and indeed still are, legal in various places and times.