Why is there a notify button on locked topics?

[SwiftHyena2593]

I mean its locked so its probably not gonna get any new replies. is there any reasoning of why its there on locked topics? it kinda makes no sense.

[Ad Bot]

[two and a half limericks]

if it becomes unlocked

[Luigi609²]

the button doesnt even work for me lol

[Platypi]

if it becomes unlocked