Well honestly, it was a silly marketing ploy. I would guess 99% of the people who took up the special pricing were MyBB users. Given the nature of the promotional accounts, all of the data they bought expires in a week's time, so they will no longer be customers. They're also going to be the most annoyed by the fact that the promotion has already ended, and the most informed as to their alternatives, which means they'll know the regular ITNT capped pricing is on the expensive side, and spend their money elsewhere.
Overall a big loss for them, I'd say.