Trying to understand the logic of this setting. I realize once in a million years, two unrelated users could possibly have the same IP address. But that is so rare that I would guess it literally never happens on the same website.
So why would you ever want to disable manual approval of someone who was banned? If the IP matches 6 months from now, you still don't want that user coming back under another name. Because they're banned.
The default of only 7 days is even more strange to me.
1) What's the thinking of this setting? I feel like I'm missing something obvious.
2) Is there something you can put in this box to make it "forever" like "0" ?
3) Is doing so a bad idea for some reason I'm not realizing?