I can confirm persistance is bugged, but in another way.
- I've found few ruined items (magazines, pouches) after 24 hours, which means some stuffs won't dissapeared after they're ruined. As results there is less and less loot. I have this information confirmed from few players on different servers (ale private hives).
- Sometimes your stuffs (clothes, vests, boots... everything excepts bags and guns) will diseapeared after few minutes, if you leave it on floor and leave area. But same stuff can stay on the palce for days - we had running shoes and jeans in our base three days...