>>It's a dilemma, actually, what is more important.
>>
>>But may be in case the OP is not subscribed, the notification message should be generated.
>
>I don't know how the "notification message" is currently generated - e-mail?
>
>Maybe it could be an automatic reply to the OP in the original forum - leaving just the original post plus the notification reply. Of course, that thread would have to be closed, allowing no more replies. The "auto-reply" could even include a link to the thread in its new location.
>
>Another possibility is to automatically enroll the OP in the new forum.

Right now the messages are not generated, AFAIK. Few years ago these notification messages went to private messages on this site.

Anyway, I think the discussion we're now having is more suitable to Chatter UT related category to not make this particular thread complete off-topic. I posted a related message there yesterday Re: Do you see a button to get all your replies? Thread #1364105