I wanted to share a house rule we use when playing IRL:
In games with Sea hag available, if there are no curses in the supply when you play the Sea Hag, it is a Saboteur. We figured Sea Hag wasn't painful enough...
For the time being, that's the only change. As it makes for a 4-cost Saboteur starting in the mid-game, we contemplated upping the cost of Sea Hag after curses were gone, but decided to leave it since by that point the price didn't make that big a difference.
I would note that we only do this if we have three or more players.