Add a sortable column to the users list on Single Site WordPress to show registration date.
Because some other plugins are _doing_it_wrong(). When they created their column, they forgot to have the filter return the previous content, if it's not their column, so it's removing it. Since my plugin's doing it right, I gave it a higher priority to stop that from happening in most cases.
Not anymore. This ONLY works on WordPress 3.1 and up.
No, and you don't need it! This is built in to Multisite.
Overlap. After a lot of testing, I determiend that Ban Hammer does this better and cleaner. So if you need that sort of thing, use the right tool.
Becuase it was redundant. If you can sort it all on one page, why not do that?