# New Thread on Board Performance

**URL:** <https://boards.straightdope.com/t/new-thread-on-board-performance/694442>\
**Category:** About This Message Board\
**Created:** [July 30, 2014, 7:59pm UTC](https://boards.straightdope.com/t/new-thread-on-board-performance/694442 "2014-07-30T19:59:11Z")\
**Posts on this page:** 1\
**Showing post:** 397

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**Author:** ![Max\_S](https://avatars.discourse-cdn.com/v4/letter/m/46a35a/32.png) [@Max\_S](https://boards.straightdope.com/u/Max_S)\
**Post date:** [November 18, 2019, 4:23pm UTC](https://boards.straightdope.com/t/new-thread-on-board-performance/694442/397 "2019-11-18T16:23:55Z")

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> [@Max\_S](#):
>
> I’ve been able to consistently reproduce the “zapping” phenomena by browsing the forum a bit _before_ logging in. Perhaps the generic guest cookie is being carried through when I log in, and overwriting my unread thread list?
> 
> ~Max

Reproduced a few minutes ago:

> [@test](https://boards.straightdope.com/t/test/843617/5):
>
> Thanks, I was testing the behavior of unread threads. The test was successful.  
> [ul]I began on my User CP, refreshing the page until this thread was marked as unread. Thank you **burpo the wonder mutt**!  
> [li]At 10:51 AM eastern, this thread was marked unread. So was the economics of trolling thread. I clicked Log Out.[/li][li]At 10:52 AM, with the “All cookies cleared!” page still up, I opened a new, private window. The original (non-private) window is now in the background, on the “All cookies cleared!” page.[/li][li]At 10:53 AM, in the private window, I navigated to [Straight Dope Message Board - Your direct line to thousands of the smartest, hippest people on the planet, plus a few total dipsticks.](https://boards.straightdope.com/sdmb/). I was not logged in.[/li][li]I clicked “About this Message Board”. All of the threads had closed envelope icons.[/li][li]At 10:54 AM, I clicked “Main” from the navigation tree at the top.[/li][li]Still in the private window, I logged in and let the browser auto-redirect me back to the Main page ([https://boards.straightdope.com/sdmb/forumdisplay.php?f=15](https://boards.straightdope.com/sdmb/forumdisplay.php?f=15)).[/li][li]I clicked “User CP”. The page read, “There are no subscribed threads to display in this folder for this time period.”[/li][li]I closed the private window - I might have logged out first but I didn’t bother recording such.[/li][li]At 10:55 AM, from the “All cookies cleared!” page in the normal window, I logged in from the top right. I was redirected to the main page.[/li][li]I clicked User CP. The only thread that appeared was the Trump Impeachment Inquiry thread, with a 10:54 AM post by **Skywatcher**.[/ul][/li]So in the end, this thread was marked as read without me ever reading it.
> 
> ~Max

~Max

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