In this case I checked it and it got maybe 3 rivets off and one poped out when I touched it, the rest are super sturdy, but I've gotten later models that simply got almost every rivet off. Maybe early construction is more solid, at least in my experience, but in any case any serious user might want to do the bolt mod to get it impecable for posterity.
Also in this silver label kbds the clicky sound is different, the ones who have tested might recognize it. It kind of reverberates less, each actuation gives a more solid clack, don't know how to express it neutrally.