I just visited the question here, which is locked as a "community effort":

What is a historical lock, and what is it used for?

I (legitimately) wanted to "Follow" the question so that I would be notified if the status of those types of questions changed in the future.

When I press the "Follow" button, it appears to work. But then I notice a banner at the top of the page:

This post has been locked; locked posts can't be voted on

This post has been locked; locked posts can't be voted on

When I refresh the page, it's clear that the "Follow" action did not work.

Something's clearly wrong here. Ideally I would be able to follow the question. If not, the action button should not be available. And if I can click the button, it should show the correct error message.

  • What would be the point of following a question that can never change? Just bookmark it. Alternatively follow the answer (the bit that can change). Commented May 25, 2020 at 7:11
  • 2
    @RobertLongson the actual bug is the wording of the error message, IMO. Should be at least "locked posts can't be followed". Commented May 25, 2020 at 7:59
  • 3
    The same error happens when trying to unfollow a locked post (if you followed it before it was locked). I bet it's the same bug in the backend, probably not worth reporting separately.
    – Em C
    Commented Jun 13, 2020 at 22:52


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