Here is some information on how the barbs were handled by individual players:
Stwils: got ransacked and pillage multiple times.
SJF: Lost a settler. Had iron pillaged.
Cracker: Pulled military back to protect the frontier from barb camps.
Shut research down because there were many barb camps ready to explode at
the era change. The barbs go for Lizzy and Shaka instead
Lee: lost population again, delayed contact with other continent
because of barb galleys.
Swift: Either very luck or very good, no barb activity reported
charis: Galley was ambushed, zone defense worked sort of, lost 85 gold
to
ransacking barbs. With more uprising on the way.
Jaxom: Spends his gold on embassies rather than lose it to barbs. No
barb killings, pop loses or lost gold! He was at zero before the uprisings
began and moved all MPs out of the cities. Interesting choices, any
comments?? Began Theo at min science to generate cash for many many cash only rushes.
Hotrod: Got Hut barbs, pillaging 62 gold during the uprising. Lost another
11 gold to barbs, should've bought embassies, next turn formed 4.

.
Lost an full health elite warrior to conscript warrior on a camp

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Borealis: Lost worker improvements, she survived the barb attacks with
some help of a nearby English city

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Zenga: started building archer just for barb hunting and a marketed
shift toward military in prep for inevitable uprising, various upgrades and
baracks built. Lost galley to barbs.
Steve: Moved worker away from barbs. Barb pillage iron. Shifted production to warrior in Canton because of barbs.
Hotrod