I think when you’ve used a pan so long, the seasoning is thick enough that scrubbing now and then won’t affect it.
For a new pan or one that needs refurbishing, I think Nifster has the ticket.
I’ve seen really bad old ones cleaned by fire:
https://www.youtube.com/watch?v=iUzPK4HAP0Q
Cowboy Kent Rollins has daily care tips:
https://www.youtube.com/watch?v=a5NbQwzwUTw
You have it exactly right