All over the city, people stuck at home are seeing wildlife, but on Beacon Hill ...

Do motorcycles/ death machines need to be so noisy and disruptive to civic calm?

on Acorn probably 7 years ago for a quick photo shoot.

Fully permitted with the city and the film office and the bpd knew, etc.

We were there for 10 minutes and some old guy came out screaming and waving his hands at us to leave.

We tried to ignore him but he stood over the kids (under 8yrs old btw) and screamed so much that kids started crying and he laughed and omg I've never wanted to assault anymore more in my life than I did at that moment.

The absolute WORST people in the city live on that street, by a long shot.

It's like moving to Bourbon St and complaining about the noise.

You are incorrect, Acorn Street, like some other private ways on Beacon Hill, such as Louisburg Square are not city property and the maintenance of the streets is the responsibility of the residents. They must facilitate and pay for their own snow plowing and street repairs. Acorn isn’t the only one of these private ways on Beacon Hill, just the most well known.

She is more correct than you are but not totally.
Acorn St is designated as a private way by the city of Boston. The abutters don't pay taxes but they do in fact own to the centerline and are responsible for maintenance of the street (including plowing).
However, streets designated by the city as private are also open to public travel. If it was completely private property (like a driveway), it wouldn't be designated at all by the city (and would show up in the assessors map as such). The abutters can basically do want they want (including putting dumpsters out there) as long as it doesn't impede emergency vehicle access.
Since it's open to public travel, she is not correct that she is allowed to keep people off of it.
FYI, most of the side streets in ft point also are designated this way too.
Easiest way to tell is to check the street signs. If they don't say BTD BPD on the bottom border or if they are a completely different format, youre on a private street open to public travel.

M.G.L.c.183 Section 58

in the middle of nowhere that says 'WORLDS BIGGEST STEAKS! 10 MILES AHEAD!'

It's meaningless.

Why is this such a thing? Who cares?

vertical video fail.

Don't signal out motorcycles for making noise. Cars, passenger trucks, and commercial trucks also "make noise" at dB levels and frequencies that likely also disturb you. Automotive audio systems are also no less disturbing than the Bluetooth speakers some people walk around with / sit on the T with) playing very loud music (sometimes with lyrics that might disturb), or people who "sing" or "play instruments" (in quotes because some of these performers are not attempting to make a career) at various points throughout the city.