Regarding the original question, to my knowledge Zherbus was the first person to permit "proxy" Vintage tournaments, and the guidelines weren't very strict. The only rule was, at first, just 5 proxies.
Actually, it was 'proxy any of the power 10'. I don't think this ever came up in the interview we did a few years back, but where I was from had a lot of Type 1.5 players. Most players who had been around had access to dual lands (they were like $15 for good ones at the time in 2001/2002), revised restricted cards, and newer stuff. Even Mishra's Workshop was like $20 at the time.
The part that did come up in the interview, which you can find in Smmenen's series, was that at the time Vintage games in general were difficult to find, nevermind any sort of tournament. The complaint was always about 'well you have power, and I don't so I will lose'. It was a valid complaint, but I wanted to show people that Vintage was deeper than the perceived turn 1 kills.
Last anecdote: I remember the event having Redman and Cooberp coming up from NG:NY, bringing Zoo and Enchantress respectfully. An Academy deck was at the top tables, a few Mono-Blue FoF decks, a JPMeyer Stacker 2 deck, a bunch of homebrews, and me with Keeper.