The flag is not on my (usually used) account. I can perfectly use that one (though it seems to be the case that old accounts can and sometimes are flagged, not for me though). It is set on new accounts in an otherwise empty browser profile over a clearnet connection in the adress space of a rather large ISP. So there should be no context to work with at all unless creepy things are done. Having some amount of google cookies didnt help either.