I think the best proof is the empirical evidence to be gleaned from attempting a routine yourself.. Why concern yourself with unverifiable second-hand info? Sure, pictures might be convincing, but some amount of doubt can always reasonably creep in, with regards to measurement technique - was it consistently performed and can the photos really serve as documentation of that? Remember that we are talking very small increments, and about multiple factors - any variation of which can affect the outcome, whether its the technical nuances of the photo itself, the measurements, the claims made on the basis of the photos, etc.
I think the reason a lot of people don’t post a starting or before pic is they aren’t really very concerned with proving anything to the outside world - they just want to learn how to get some results. Plus there is the fear factor of being new, or of being embarrassed, which right or wrong, are concerns some people have. Personally, I’m just too lazy to do it. Its a lot of effort to do it right, and if I were going to do it, I’d have to do it right. I see this a lot in the car community, where there is a small segment of the users who will do a mod or a repair and document the shit out of the job. Good enough quality to put into a magazine. And those become tutorials on the site, and people give them a ton of respect and credit for making the effort - but when I do something like that, its usually hard enough for me to just do the work, let alone add in the extra complication of documenting every step. I’m always the first to say “Good on you for doing that!”, but I would rarely make the effort myself. I feel the same way about PE. Just tell me what you did, and if its so complicated that it needs an accompanying photo essay, its probably beyond my capability anyway.
4/2008 Bpel 6.50, Beg 5.5, Mseg 4.9
6/2008 Bpel 6.75, Beg 5.5, Mseg 5.1
9/2008 Bpel 7.00, Beg 5.5, Mseg 5.1