I’m setting up a community and we’d like to disable auto-promotion so that we can use the trust system but have more manual control over it. More specifically, we’d like to leave levels 0 and 1 working with auto-promotion, but levels 2+ would require manual promotion
I haven’t seen any option for doing this. My current plan of action is to just set unreachable limits, but wanted to see if there is a proper to do it before applying my duct tape 
Thanks!
Should be fairly simple, just make tl2/3 impossible to achieve via site settings. That is in fact the proper way of doing it.
Would it be an idea to have a toggle per trust level (enable / disable automatic promotion) instead of having the admin enter multiple unattainable values to disable automatic promotion?
Its so rare to want I am not sure its worth adding.
We also do not want people to disable this unless they have very good reason to. Part of the promise of Discourse is that the community is trusted to help moderate itself. Turning trust levels off is counter to that philosophy.
I think we may attack this problem using custom user groups instead. It seems to be the proper way to do this (we’re still wrapping our heads around the system). Is there any word on when group administration features, specifically, granting a user permission to add/remove users from a group?
That’s on the wishlist, and I think some of the technical foundation has been laid already. Needs quite a bit of UI work, I think.
Understandable. However, it depends on the use case. For forums/communities, what you said makes perfect sense. But I want to use Discourse as a blog, and this feature request would be valuable, I don’t want to have blog visitors promote themselves to more rights all of a sudden.
So, a vote from me as well for this feature. Until then, I will do the same workaround but it would be nice to have it.
(Sorry for ressing an old topic, I needed to ask the same question so I found this).
Thing is, it is doable today, just make the promotion impossible to attain and … problem solved 
有没有办法让 tl0 无法自动晋升？我希望匿名用户可以阅读特定分类，而特定的已登录组成员（“贡献者”）可以发帖、回复等。目前这已经实现了。
现在我希望为没有账号的匿名读者提供注册选项，但除非我手动晋升，否则希望将他们限制在 tl0。这样他们可以接收通知等，但不能发帖或回复。
我将受邀用户的默认 tl 设置为 tl1，但无法弄清楚如何防止 tl0 自动晋升到 tl1。我想我可以将“tl1 需要进入主题”、“tl1 需要阅读帖子”和“tl1 需要停留时间”设置为一个非常大的数字，但这似乎有点不优雅。我是否遗漏了更好的方法？
没有。这就是正确的做法！