Is mass close topics available?
If not, I would recommend to add this option.
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The discussion revolves around the topic of mass closing topics on Discourse. ckhawand initially asked if mass closing is available, and joebuhlig provided a step-by-step guide on how to close multiple topics manually. However, ckhawand clarified that they want to close a large number of old topics (pre-2015) and manual selection is not feasible.
dax suggested using a support request for specific issues and provided a link to a related topic on auto-closing old topics. JagWaugh mentioned that there is a setting to auto-close topics after a certain post count and suggested an “autoclose after nnn days” feature.
Mittineague pointed out that category-level settings allow for closing topics after a certain time period or after the last reply. However, they noted that a “close retro” setting might not be necessary, and a CLI command could suffice for imported topics. The discussion concluded with mbbroberg expressing gratitude for the clarification on the topic closing process.
I mean, we have posts from 2008, and we would like to close all topics before 2015 let’s say, I won’t stay 1 day on selecting all that man! 
See here
PS: In support requests you should be a bit more specific
There is a setting to autoclose topics at a certain post count. And a warn user if topic is older than setting. An “autoclose after nnn days” wouldn’t be a bad idea.
At the Category level, there are
- close topics after n (topic creation time)
- close topics n after last reply (last post time)
I don’t know how it works with imported topics, but because importing topics is rarely done, IMHO there isn’t a critical need for a “close retro” Setting and a CLI command should suffice.
太好了！感谢 Joe 将这个流程可视化。我之前在接手的一个 Discourse 论坛中感到迷茫，而正是这个缺失的工作流帮助我完成了清理工作。