Is it possible to make all admin created posts non-editable to all other users?

[Moin]

@anon65426961

but it is possible anyone who is at TL4 could have moved those to a different category

On the one hand being tl4 does not mean you are staff. If you are tl4 but have no admin or moderator status, you won’t be able to see, edit or move a topic, which is in the staff category. On the other hand the powers of moderators don’t depend on their tl. See Trust Level Permissions Reference. There is no tl in the moderators column.