TLDR: I worry it will create more effort than it prevents
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- Better than worse - If someone doesn't want to be here, I am happy to lose them. After all, if you want your content gone the way Rudy5 did, you might find other ways to cause problems. And yes, there are ways to hurt the site without launching some kind of high-tech DDOS.
- I edit a lot - Andrew pointed out that he almost never goes back and edits something a week or a month after posting, but I often edit my own posts long after the initial post. I did this just yesterday with a Foxit post from last year. If someone else catches something like the issue I had, it's either got to be an edit by a moderator or a new post explaining some detail issue that may just add confusion.
- Transparency - Although Midas is right that this is a public space, we didn't let users know at the outset (as freakazoid noted) that their work was public property. Just like the majority of open source programs we highlight -- the content here is governed (as I understand it) by copyright. If we change the user agreement, would it apply to users/posts that had not seen or accepted the new agreement? What happens to users who decline?
- Sense of ownership - It's hard to give volunteers a sense of pride and possession -- to illustrate how a project (however small) belongs to you. I recall my interest in another freeware project years ago getting zapped when the website deleted the content of my post without explanation. I now could easily appeal the decision, but at the time I didn't think anyone cared. I worry post locking would have a similar effect.
Some other mitigation strategies might include:
- Open content licenses - allowing users to go with something other than standard copyright for their efforts here. I've seen a few places enable public domain or Creative Commons posts for example. (Thanks to Joby for this idea.)
- New user lock - your first few posts are all locked. This would get around the problem of making old users accept a new agreement. It would also help out with a far more common issue of Spam Anchors, where some one posts something useful and then goes back and adds a link to their porn site. Unfortunately, this would not have prevented the issue with Rudy, who had over 100 posts.