So any qrcode made will be useless in 2 days ?
as your signature clearly proves: NO.
download the picture and you are totally fine.
hotlinking is on my agenda, it just doesn't work right now.
[edit]i changed the script to not wipe pictures anymore. however, the current script was never intended for hotlinking. this is a TEMPORARY solution, and this may change as soon as i find time to implement hotlinking in a permanent way. so i still advise against hotlinking, but it is possible now.