After I tried to set this blog as my own OpenID provider using the OpenID WordPress plugin, I got a weired error message:
“This is an OpenID Server, Nothing to See Here… Move Along”
I could not find what as wrong, as all prerequisites were fulfilled, until I find this nice post. The patch there works very well, thanks to the author (it is a shame that it wasn’t yet included in the trunk).
This and the lack of active open-source development around OpenID seems to show that it is not really popular. It is a shame because it is a pretty good solution against the multiplication of passwords. I wouldn’t want to use OpenID for my bank account access, but it is just right for many sites, forums, etc. Unfortunately, no many sites are yet OpenID enabled and the choice when you want to become your own provider is very limited (most of projects listed in the official wiki are dead, with no update for the last 2 years).