It's copyright mark. If you don't want, you can disable the plugin.
-edit- I changed the code so that the copyright text is now a visible link.
The code to display gravatars in sidebar is in the TXT inside the zip archive: you must do manual edit.

Ok thanks.

Edit: Sorry but I can't accept a link. I'll rather send you some $. Sending you a PM.

No, please, I don't want money to delete the link. If you don't want it, just disable the plugin for footer link:
go to Plugins & Products->Plugin Manager and search the plugins for Gravatar as Default Avatar and delete or disable the one named "Profile Hooks".

I don't require to keep the copyright footer.

Ok, thanks a lot.

Profiles are messed up when mod is uninstalled.
Tried disabling plugins and when process_templates_complete is disabled is when the profiles get messed up.

PD: I'm running vbulletin 4.1.4 on my board

Try to flush your cache (browser cache and server cache), this plugin doesn't touch in any way your template, so when you disable it, you return to the original state.

I tried what you said, but the issue is not fixed by flushing the cache. Only the profiles that have been modified are affected, unmodified profiles are not affected. Can you look into this, I had to unistalled because the location of the footer link does not look good with my footer.

The footer link can be removed, I don't require to keep it.
To remove the copyright info just disable the plugin for footer link:
go to Plugins & Products->Plugin Manager and search the plugins for Gravatar as Default Avatar and delete or disable the one named "Profile Hooks".

About your issue, can you give me a link to your forum?
As already said, this product doesn't add anything to your database or server, it's a simple function that calls a gravatar link when the avatar link is empty, but it does it on the fly. So no profile attribute is modified

Link to one of the affected profiles sent in a private message. :)

Issue has been resolved, it was not the gravatar plugin causing problems with my profiles but a template edit.