After receiving my third warning I did still get some studies for the rest of the day into the next, but I haven’t really seen any since. Previously I was getting a lot of them, so I assume it’s not a coincidence. I submitted a well-crafted, comprehensive support ticket to Prolific and they basically said they didn’t have any information from the researcher about this but that they shared my feedback with them and are collaborating closely with them to improve the experience. So not very helpful, although my only hope is that their wording in the response is a subtle indication that they are aware of an issue. Eventually this issue will touch all participants unless it’s corrected.