Starting this morning, no matter how many times I reload the front page, and no matter whether I'm logged in or not, this single comic is the only thing that's displayed as the preview panel:
[ Posted comic does not exist ]
As bugs go, this one is pretty funny. Or perhaps we were hacked by somebody who's just really excited about that comic?
It's #252191, which doesn't seem like a significant number (not a power of 2, not the most recent comic...).
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The what mentioned above is total fiction. Please don't take it seriously!