# thread numbers and moved threads

**URL:** <https://boards.straightdope.com/t/thread-numbers-and-moved-threads/48645>\
**Category:** About This Message Board\
**Created:** [January 5, 2001, 10:56pm UTC](https://boards.straightdope.com/t/thread-numbers-and-moved-threads/48645 "2001-01-05T22:56:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Irishman](https://avatars.discourse-cdn.com/v4/letter/i/b487fb/32.png) [@Irishman](https://boards.straightdope.com/u/Irishman)\
**Post date:** [January 5, 2001, 10:56pm UTC](https://boards.straightdope.com/t/thread-numbers-and-moved-threads/48645/1 "2001-01-05T22:56:42Z")

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Okay, this is puzzling. When a new thread is started, it gets a number. What happens to that thread number when a thread is moved to a new forum? Is that number recycled, and all the later threads cycled down a number? That would certainly screw up links. Or is that number reserved somehow?

In the old board, a thread would be locked in the original forum and retain as a placeholder. There does not appear to be the same locked threads in vB. How does this work?

Curiousity abounds. I noticed once or twice when returning to a forum that a thread would be highlighted that did not seem familiar, like I had not read it. Nobody else uses either my home or office computer, so it is not likely someone else read it in my stead. I am curious if the above question could be an explanation, or if it’s just my memory playing tricks on me.

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**Author:** ![Arnold\_Winkelried](https://avatars.discourse-cdn.com/v4/letter/a/3d9bf3/32.png) [@Arnold\_Winkelried](https://boards.straightdope.com/u/Arnold_Winkelried)\
**Post date:** [January 5, 2001, 11:51pm UTC](https://boards.straightdope.com/t/thread-numbers-and-moved-threads/48645/2 "2001-01-05T23:51:28Z")

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Thread Ids and Post Ids remain unchanged after a thread is moved to another forum.