[rubyron]

Thanks for your response. This happens to me whether or not I've collapsed any comments or hidden any posts. Frustrating, because I've tried it on a couple of friends' iPhones and their phones don't have the same problem.

It feels like some kind of issue with the response cache headers sent by the webserver, but since it's not reproducible on some phones or any desktop browser, that's unlikely.

[WalterGR]

Hmm… yeah nothing to do with hiding. Strange and annoying. :)