Just because you don't know how lawyerin' works is no excuse to be insulting. They take a contingency, like every other friggin' lawyer on the planet. (No financial interest, don't know the founders from Adam, yada, yada)
The class against Equifax is huge and you should absolutely be aware that less than ethical lawyers are going to come out of the woodwork making all sorts of promises so that they can get their slice of what Equifax is going to pay out. The lawyers that I want to work with will either charge me an hourly fee or they will be upfront that my involvement in a class means that I'll be helping to punish Equifax but that I'll be forgoing most damages to do so.
Actually, there are countries where lawyers don't (and legally can not) take contingency fees.
Not allowed to advertise, either.