I would recommend not messing around with it too much on the Threads end: If the posts showed up as 'yesterday' then your cookie (before cleared) would have indicated that you were there after the post was made, therefore the bulb would not be lit..
Your users would have to go through similar cookie deleting, etc. to get those posts to show up. I would lean on your host to get the time corrected.. There may be a few posts that will have incorrect timestamps in the interim but you can always reply to them and bump them to the top if dateslip is not keeping them in place.
Regards,
Brett Harris
Infopop Corporation
