I'm sorry I'm a n00b, but I got really messed up with the ecDownloads hack, and since it was a product, I assumed uninstalling the product would uninstall the hack, oh no. I had to go in and delete things from the database, thanks to another user pointing them out. I was unable to add new usergroups because the hack left blank permission settings after I uninstalled the xml.
I just think that would be a huge help to people. It's happened to me before, where I needed to uninstall a hack but had no idea how to, and users has to help me through it.
Just a suggestion.