In reply to:
this site actually explodes
You've never been here for an 'Oops!' then.
The expiry time was set on posts and all older posts archived after the first one which lasted a few of days during which TW was inaccessible.
These days when they happen it's never much longer than an hour.
Still annoying though
A plan so cunning you could pin a tail on it and call it a weasel...