Talmidchochom:
People here quote gedolim all the time. Would you get this upset at people over quoting Rashi/Tosfos even though we didn’t “know them?”
We have other threads here also where we discuss out favorite beers and such. Perhaps you’d have a better time on those if you find the idea of bringing proofs from poskim so offensive.
I have no idea which side of this debate you’re on or if you’ve even posted here yet; this is too big to keep all the names straight. But, your premise that people shouldn’t be allowed to quote a posek unless they knew him personally is absurd. You made no mention to whom you believe misrepresented Reb Moshe, but I presume your quote is a reaction to someone who brought a proof that didn’t jive with your shittah on this matter. Grow up, and bring a real counter proof.