Good on yer mate. However, if you're digitally challenged and took a year to finally win on Regent then the forums are indispensable to playing higher levels w/o cheating. Granted a lot of info is about micro-management and exploits, how else can an ordinary mortal beat the AI at Emperor (my personal best) or higher?
There's only one real exploit you need in Civ III, and that's learning to maximise the Republic form of government. That's the only piece of advice I've really found use of from the forums. I had no idea how ridiculously over-powered this government state was when I first started reading the forums.
Code of Laws -> Philosophy -> Free tech -> Republic
As long as you get to them first you can be the tech leader the entire game without too much trouble, even from a horribly poor starting location.
Just by discovering this I was able to go from struggling/ranting on Regent to comfortable victories on Emperor without barely changing any other of my game methods.
The only thing hampering a win state is AI Civs declaring on you. You want a 'mortal' win on Emperor? Just start on an Island and the AI won't even reach you until 1000AD, and even then, they won't have the nous to perform a decent land invasion, least of all if you have a decent cavalry army to defend yourself.
As long as the AI isn't able to expand by killing other Civs too much then you should be able to achieve any of the non-violent victory conditions on Emperor as if you were playing Warlord.
Hell, I don't even use the time-worn cliche of milking all the AI Civs money via absurd trades (a given to most players) and I can still role-play a relatively stress-free victory on Emperor with this method.
The main 'issue' with higher levels is that the AI can spawn armies in one turn, making war a form of sadomasochism rather than entertainment as the unit you killed is instantly replaced. But non-war Victory Conditions, it's much of a muchness up to Emperor and only wanes after that because the AI can spawn tech and Wonders every other turn, rendering 'normal' play pretty much pointless as there's nothing really left for the human player to grasp at, other than exploits.
I think the vast majority of new players get stuck around Warlord/Regent simply because they don't know how best to manipulate the main game-intended exploit - American Republic-biased propaganda (either that or the devs simply didn't put in much time to balancing issues).
I agree with the guy who said he prefers to role-play, I think many exploits just make the game a mockery rather than a game and it's a lot more 'real' (in a role-playing sense) to just play without exploits, even if you know what they are.
But I also agree that not using the in-game Republic-bias once you know about it is a bit silly - as this is a game-intended feature and not really an exploit. It's like discovering that Mario can, and is supposed to, walk on the top of the screen to get to a different portal.
I don't think the Civ games are just supposed to be number crunching games. I think if someone is playing them just for the sake of number crunching then they're likely the ones who are playing it wrong, or, at least, with the wrong mindset. I suspect these kind of players are more the 'Command and Conquer' type gamers than Role-play gamers.
Civ appeals to both though, hence why these kind of posts emerge.