Books still offer 3-team parlays on free plays and it still ins't +EV. It is simply optimal strategy for getting the most out of the bonus. Correlated parlays requires special skill set known to only some players. The situation here is vastly different:
At Anonibet no matter how square the better is, no matter who it is that is making the deposit, every deposit they make that gets a bonus that +EV. It requires degeneracy / lack of knowledge, foolishness or whatever you want to call it to ruin the EV, but it starts off that the mere action of depositing at Anonibet is a +EV action. That would be if they actually offered what they advertised they do. See the problem?
Edit to add a PS. It feels like we're secret agents using these handles lol. You know the people that made that comment, one you've debated with extensively in the past.
Many know optimal strategy on free plays whether it parlay or huge ML play. Many also know the subsets and correlation needed for +ev. Approximately 30% in the NFL without looking at total/spread. Most of this is discussed on sports betting forums.
lol at the secret agent comment.
Anonibet and others - Once again I apologize for getting off topic and will delete if asked. I guess my point is that Anonibet didn't give away the house with their bonuses although there are definitely problems that need to be addressed.