And to bring things back to topic, it also got me thinking about why I didn't like the no deletion policy. I stay away from Google+ and Facebook and so on because I have concerns about how they can collect and use (misuse?) my data and meta data in ways I couldn't even conceive. I feel I am expected to relinquish control to a disturbing degree. Has anyone ever read a privacy policy? Being able to delete posts, and correct errors and bad grammar helps me feel I retain some control of my online presence.
The reason I have always allowed deletion and editing because I believe that if you go to the trouble to contribute information to forum, then it's your information, and you should have the right the delete it if you so chose. I don't own your data, you do. This is not some permanent recording and archive service.
If someone wants to capture your data once you put it and archive, well that's up to them, but that's not what I do.
Some like xrunner believe that once you say something, it should be documented forever, to be held against you forever. You said it, you live with the consequences.
That might have been the case pre-digital information revolution, if you say published a letter to the editor in a newspaper, a million copies are made and you can't take it back. There was no mechanism to take it back. But with digital communications (esp on a single site like this, assuming no one archives it) you do have the ability to go and take back what you said if you so desire. Should that be allowed? I think so, yes.
It's like you holding up a sign on the sidewalk or noticeboard. People can see it until you decide to take it away. And anyone is free to photograph you holding up the sign if they want to archive it.
So I view this forum more like a noticeboard than the national archives.
Now, just like saying something in public (that's not recorded), you can't take back that X number of people heard you say that, but really, it's the same thing, you are just "unrecording" it by deleting it. I think you should have that right if it's available through to mechanism you used.
Of course, other people should always also have the right to archive anything you say publicly, and that is a risk you take with saying anything in public or on this forum.
Hmm, all that probably doesn't make much sense...