its a scare tactic. $100 wouldnt be enough and some people would keep doing it. $2,500 does seem a bit steep, and so steep that i doubt they will get more than 20% to pay the fine.
im not an ISP expert by any means, but im pretty sure that the only way it would hold up in court is if you have a static IP address. Since most ISPs change your IP address frequently (mine changes about once a month) I dont think they log which IP address goes to which customer.
then again i could be wrong and then everyone is fucked
