Is there an equivalent to pinning posts to the top of a category in Vanilla? If not is there a plugin, or can someone make a plugin, I'm sure it would be useful for people to have.
Yes it is called announcements. If you have the permission you can set it for all categories or for the category only.
grep is your friend.
I've been using announcements to pin discussions to the top but it there any way to edit the "Announcements" text to say something else?
That is a localization question..
In theory you can change the definition via the locale file of the language that you have enabled.
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