I did too, but, I'm not entirely sure some of the things you list here are cheating.
Ok, I'll be the pink elephant in the room.
I cheated. A lot.
1.) I allowed alternate char-gen (4d6 as soon as 2e), and was pretty liberal about re-rolls. Most the PCs in my game had good stats (a few were weaker, and "unfairly ubers" took a lot of grief).
4d6 drop the lowest was the standard rolling method in 1e D&D. Basic/Expert D&D allowed you to lower some stats in order to raise others at a cost of 2 for 1. 3d6 in order with no changes is OD&D only I believe.
2.) I allowed max hp at 1st level. Most Pcs could re-roll 1s or 2s on HD rolls.
We did this one too. Continued doing it in 1e. Made rangers rock on toast. 16 con got you 20 hp at 1st level.
3.) I allowed Max Gold at 1st level. (Most warriors could afford chain armor)
We didn't do this one. But, then again, Plate mail was only 60 gold, so, it wasn't like your fighter wasn't going to start with a 2 AC right off the shot.
4.) I didn't use large hordes of monsters (typically 4-6 in a decent encounter) or a lot of random encounters (a lot. I did use them.)
Now, we did use hordes. Mostly cos we played modules.
5.) I gave out XP for quest completion, "role-playing" a situation, and acting in role (clerics evangelizing, wizards learning new stuff, etc)
Y'know, even in 1e, we gave bonus xp to casters for casting spells. Surprised the heck out of me when our house rule became official in 2e.
6.) I used a lot of additional rules (kits, etc)
Yup. Loved me the heck out of the Unearthed Arcana 1e. Just warmed my munchkin little cockles it did.
7.) I wasn't shy about "good" treasure (bracers of armor, +1 gear, elf-cloaks, rings of protection, scrolls and wands, etc)
Me too. Then again, we ran modules and those things were just STACKED.
8.) When all else fails, I'd "roll" low on the dice. (typically on damage rolls)
Sure, I saw deaths. Even good stats (which raised things like thief %s and cleric bonus spells) and optional rules didn't stop deaths. But my group was very RP/story driven, and the idea of having "Bob VII the fighter" being the guy who survived to 3rd level didn't appeal to us.
To this day, I'm not a giant fan of the "disposable hero" syndrome. It feels more "gamist" than any "daily martial power" or "Your 5th level, you can now fight gnolls" encounter.
Yup, pretty much the same here.
Funnily enough, when I did run 3e straight by the book, I slaughtered the PC's. The campaign averaged a PC death every three sessions. Gack. Since then, I use Action Points to mitigate 3e lethality and that's worked for us.