Maybe you should get to know the members of this forum better before telling anyone they made a stupid suggestion.First thing, you don’t know what your talking about, It’s never a bad idea, to inform Amtrak of any changes to your itinerary prior to your train departing. What happens if your attendant or Conductor forgets because they are occupied with other things. This ways it’s on paper. Here’s a little advice, in the future think before you make stupid statements.
As others have stated, to get off one stop early is not, usually, worth the potential the agent will screw up the change and charge you more.
I am also one who got off one stop early on a trip by just telling my SCA and the conductor of my plan. Should something have happened that I wasn’t able to get off I would have gotten off at my original destination and gotten a ride back to the previous station.