>You must register your copyright with the U.S. Copyright Office before you are legally permitted to bring a lawsuit to enforce it. [2]
[1] https://en.wikipedia.org/wiki/Copyright_registration#Require... [2] http://www.nolo.com/legal-encyclopedia/copyright-registratio...
You meant "linearly", right?
this is why, I believe, it's actually against copyright law to use an open source project that doesn't include a license.
It's not open source if it doesn't include a license stating that it is.
I'm not a huge OSI fan, so when I say this, it's not coming from a place of ideology. It's just historical fact.
† The organization didn't exist yet, but it was founded later that month.
OP was saying that there is a provision in the law that allows you to claim 3x the allowable damages if you take the time to register with the copyright office and pay the filing fee.
Udemy being active in many jurisdictions I imagine parallel cases or forum shopping might be worthwhile. Particularly an international firm might be able to direct the case to somewhere that values personal rights above those of corporations which might enable you to hit Udemy hard enough that they'll care to do something to prevent it happening in the future.