Maybe someone has had experience with this requester... I did a HIT for this requester back on 9/23 and it was rejected on 10/14 with the reason "Your submissions were declined as there were multiple submissions that have the identical latitude/longitude coordinate in location. Only one submission per worker is permitted as we declared in the instruction." This means that the requester is using geolocation data based on Workers' IP addresses to determine multiple participation, and thus whether to accept or reject a HIT. This requester has been doing this for the past 2 years or so according to their reviews on TO: https://turkopticon.ucsd.edu/A30GS97Z2I7R8G When I received the rejection I looked it up in the HIT tracker, and this is the only HIT for them. Opening the archived HIT I saw in large red lettering the warning about rejection for multiple participation. When I clicked on the survey link, the survey had been deleted so there's no info about IRB, who to contact, etc., but there's a Penn State banner. I messaged "Likes Rus" using TV's bridge, but they never responded. After about 2 weeks I contacted Penn State's IRB, but after several emails, they were unable to locate any info or study from this "Likes Rus" person. I messaged "Likes Rus" again without the bridge, telling them I had contacted the IRB and that I would be contacting others at Penn State unless they responded. They responded to that message as well as read the message on TV's bridge and asked me, "May I ask you in which place did you complete your answer with which device?" So I explained how geolocation is unreliable, provided screenshots showing how unreliable it is (whatismyipaddress.com had coordinates 3.3 miles from my home), told them about my computer setup (OS and browser), and said I live alone, only have 1 MT account, and that Vegas is a large city and that it's highly likely there's another Worker somewhere around. They responded with, "Thank you for your clarification. We approved your submission again. Please check it and let us know if you have any questions." I don't know what they meant by "again"... So that was on 10/25 and the HIT is still rejected. I've messaged "Likes Rus" twice now, but no answer -- 2nd message was just yesterday. I get the sense that this person only told me what I wanted to hear and had no intention of overturning the rejection. Or it could be they are really busy. I don't know. But using an alias and a Gmail account (rather than a psu.edu address) also gives me a sense of deception. Other than avoiding and blocking the requester (which I've already done) does anyone have any suggestions?