Recently Registered

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 at this time. The code is hardcoded because so is WordPress and I wanted to keep it matching as much as possible. That means until WP changes how it formats that column, I’m not changing the plugin. It’s translatable, which will allow for different languages to format as needed, but that’s it.

Yes it does. When Network Activated, it adds a column on each sub-site’s user list to show registration date.

Because Multisite doesn’t show that by default. If you set the request mode from list to excerpt, it’ll show the time. It’s a bit of a complicated way around it, but this stackexchange thread explains it in detail.

That means the values in the database are set to pre 1970 or post ‘now’ (whenever now is). Basically it had an invalid date.

Yes!

Overlap. After a lot of testing, I determined that Ban Hammer does this better and cleaner. So if you need that sort of thing, use the right tool.

Because it was redundant. If you can sort it all on one page, why not do that?