Streamed-in replies in locked topics have Reply buttons
Specifically, in One Post. @Yamikuronue replied to my post, and when it streamed in, I could click the Reply button under her post and compose a reply - it was only at Submit that NodeBB barfed about the lack of privileges. After the refresh, the buttons are gone.
(also, MOD ABUUUUUUSE)
Were you able to reply as linked topic though?
@LB_ Actually, I don't think that's possible, at least not from the UI - the "Reply as Linked Topic" option is under that big Reply button, and it doesn't show up in a topic I don't have permissions to reply to.
Speaking of unrolling menus, that's one useful dropdown too:
This is why it's there:
They I guess weren't smart enough to hide the dropdown itself if you're not a mod though.