An edit was made to remove a URL relationship that was once was correct but now is essentially a dead link (edit #38467308). But there is more than one possible course of action when encountering a dead link:
- Remove the relationship.
- Set the "ended" attribute of the URL relationship.
- Add links to snapshots of the website taken while it existed.
Once you know that it is possible, it seems obvious that the link should not be removed but rather be set as ended. However, the link in case is not dead per se but used by some kind of spam network. This means that MusicBrainz will link to spam (possibly scams?), so we would have to consider the morality of that.
Snapshots are probably more useful than dead links, but more arbitrary. I propose that one URL entity should be created for each major revision of the homepage, preferably the last one available (in this case, 2010-08-14 and 2014-08-25). This would make sense in a URL-URL relationship to the actual link with the snapshot date as an attribute.
Ideally I imagine the snapshots would be displayed underneath the original link. Also, it might be appropriate to display the original link as plain text if it has ended to avoid linking to malicious sites.
What are your thoughts on these proposed changes? Until the relationship is implemented, I think it would make sense to add snapshots as ordinary homepage relationships alongside the ended original link. Do you agree?