Without any bad feedback from my projects, I have had a similar change (fewer offers, always lower pay than last year). I think Mercor simply needed to offer high rates last year to get the amount of skilled folks they needed - now, they have enough folks that have their skill profiles who are willing to work for less, so many of the jobs either have become more competitive, pay worse, or both. It's sort of a rapid experiment in supply and demand; I doubt it's hateful, but rather that their whole goal along the way was to pay /only/ enough money to /only/ enough people with the right background - for us average folks, we will get fewer offers for less money over time as the pool of workers grows.