The fraud filter will get you because of datacenter ips and if that does not happen , after sometime the advertiser will pull you because It’s not backing for them. Do you really think they just want the email? They want the users to go down the funnel , opt for offers and buy stuff. If that is not happening , they will pull you on no time. Same thing for trial offers, people think they can get away with it, you may initially, but they will see that the rebill rate is 0 and will pull or charge back