A periodic reminder that if you look at the description for this category you will see it is marked read only. You can’t reply to posts - it’s for one way communications about the site itself.
If people have questions about anything posted in this category, just PM admin (which you have to do on the web interface, naturally).
I will admit that a small shortcoming of Discourse is that you can’t make it hugely obvious that a category is read only. Not something I can change.