We have a thread that has reached 10,000 posts and became locked. How do we unlock this or raise the limit?
This feature is there for a reason, refer to this topic where the feature was introduced:
Note this “auto closing” helps keep Discourse performance high.
The setting you might be interested in is:
auto close topics post count"
Admin > Settings > search for
auto close topics post count
Great! Thank you for pointing out that this option existed. Based on @DeanMarkTaylor’s explanation, I will leave this as default.
It can be OK, but older Mobile devices and particularly older Android devices will be severely punished performance wise on topics with a lot more than 10k posts.
We do plan to eventually fix this, but it may take a year or more.
OK - thanks for the additional information. I will just plan to open new threads when they hit 10k comments.