I found this site years ago and was told by a prominent Rabbi that it sounds like the ramblings of a disgruntled challal.
I have a family tree, mesorah, grave stone of my last frum ancestor and a positive DNA test. Not much more I can do and that’s how I’m holding until Moshiach comes. If it turns out I am not a true Kohain, so be it. Until then I will continue giving other Kohanim kavod, duchaning and going up for the first aliya when called.
And I guess since there is no actual semicha today, we have no true Rabbis either – so I’m not worried. Oh, any Yidden here (save gerim) have a shtar yichus proving their status as B’nei Yisrael? No? Perhaps you’ve all been oveir on an issur d’oraysa by keeping Shabbos. Just sayin’.