So I thought they stopped offering free TX acceleration at first but I couldn't find anywhere that they stopped offering free TX acceleration.
Even when they assumedly offered it, I think it took a great deal of time for pool to pick it up. I've said it times without number that this congestion thing is going to be the bane of Bitcoin if it's not speedily dealt with. The current backlog has lingered beyond anyone's endurance level.
That led me to think what if someone built a bot to abuse their service? or what else it could be?
If they haven't blocked loopholes that could expose their vulnerability, then they should be blamed for exposing themselves. We know hackers/scammers get more creative when their point of interest becomes lucrative. Bitcoin is getting more attention. Everything that revolves around it is also picking up that attention.