"Exactly. Whatever experience that can be measured repeatedly and independently becomes accepted verifiable fact. What cannot or has not been successfully measured repeatedly and independently is in the realm of conjecture or hypothesis or 'marketing hype' or 'unsubstantiated claims'."
Agreed, all except that this leaves no possible room for personal observation. Yes, anyone can come forward and falsify an observation, but that is merely a complication of truth, not an elimination of it...simply because a false claim can exist does not mean that therefore a True claim Cannot exist.
What you claim in the above is essentially a denial of truth itself. Any verification of truth can potentially and legitimately originate from an observation. Without being granted that possible avenue of acceptance, the truth (according to what you said) is blocked from from ever becoming recognized.
That's a complete denial of the scientific method...which always begins with an observation, btw.