[@Ellri]
I feel like a grouping of the timestamp on Ghost mode people is almost mandatory in order to keep the intent of ghost mode. You could change it to within the last year, but if it still shows at the top of my list when they're online, it breaks the point.

Also, if someone is obsessive and constantly refreshes that page, they could see when an offline person moved to Ghost Mode if they had been offline more than 12 hrs. This would indicate they came online. I'm just trying to help stop harassment before it begins.