Hey, I love cars as much as anyone, perhaps even more than most. I have raced and rallied and owned some special cars and really appreciate others who care for their cars. I also take my car out on the ring every week. If I am willing to thrash the hell out of it on a regular basis and risk rolling it into a ball, which has happened more than once, why should I worry about somebody opening a door against it. It is a risk that I accept.
How would you feel if everybody else decided that they would all take up two spaces and there was no room for you to park?
The lines delineating the parking spaces are there for a reason. Just like the lines on the road, they are to be respected. There is a certain etiquette to be observed. I make sure I dont open my doors against other cars and hope that they do the same.
To drive your car into a public space and take up double the allocated area to park is churlish and bad manners if nothing else. Chances are that if you are diriving a Clio, it is worth less than many of the motors parked in a proper manner.