This question already has an answer here:
Historical locking is used on main sites to indicate old questions that are off topic due to new rules. These posts have collected a lot of votes and are referenced much. Historical locking is used to prevent these posts from being deleted.
locked by Moderator ♦ Mar 16 at 20:01
This question exists because it has historical significance, but it is not considered a good, on-topic question for this site, so please do not use it as evidence that you can ask similar questions here. This question and its answers are frozen and cannot be changed. More info: help center.
On Meta sites, historical locks are used to mark posts where voting should be frozen for all answers. Examples are contests that have been completed, closed pro-tem moderator nomination threads or long-completed (or abandoned) feature announcements.
I think the standard lock reason is not applicable for all these cases. As these cases make out the overwhelming majority of meta posts that are historically locked, I propose to change the reason on MSE and on all per-site metas to something more appropriate, for example:
locked by Moderator ♦ in 4 hours
Voting on this question and answers was only appropriate in the past. To preserve the original state and voting results, this post and its answers are frozen in time and cannot be changed or voted on.
Similiar feature requests:
- Have a special lock for meta sites for historical (out of date) policy decisions (proposes to create a totally new lock, I propose just a rewording)
- Make it possible to prevent voting on time-limited questions in meta without a historical lock