I think it’s good forum etiquette to post a note explaining moderation actions. Changing titles and moving categories should be kept to a minimum.
That said, I do think at least two of the threads were in need of moderation. I thought it was strange to see a thread from January pop up on the forum feed with no substantial update, and the “Let’s discuss photography software, Android ROMS, and phones that aren’t the Librem 5” thread in the Librem 5 category was off-topic.
There might be a place in Round Table for such a thread, but that would be up to @joao.azevedo at this point.