Hey! OP here. Great question.
So I think one piece of context that's missing from all of this is that our service 1) helps people and 2) can never cost them net-negative.
Our service is a property tax protest firm, where we represent homeowners in an effort to reduce their home's "appraised value," and thereby lower their taxes.
If we succeed, we take a percentage of the realized savings to the homeowner, and leave them with the lion's share. If we fail, they don't pay us anything. There are lots of firms that charge flat fees regardless of success. Those are the bads guys in our eyes.
I look at the handwriting as way to optimize open rates, just like writing a good subject line. I know that emails that say "Hey Aaron!" weren't written one-by-one by a well-meaning intern. Likewise I assume _anything_ I get in the mail is junk. We just want people to look at ours and think "oh wow they put some effort into this piece of junk mail." (We don't think we're junk mail, obviously.)
Anyone that uses our service will either make money, or they'll be left in the same spot they were before.
So I feel pretty great about that!
> I'll say that if the machine described could be miniaturized sufficiently
It started out mini! You can find it here: https://shop.evilmadscientist.com/productsmenu/846