So, is it once or week or not?
I'm glad you can read someone's intent over the internet, when this is known to be almost impossible due to there being... ironically and in contrast to your statement, a complete lack of tone on the internet in written medium.
Indeed, many people disagreeing with things that are demonstrably the case does make them look like they are incapable of understanding. Disagreement is not the same as refutation, of which there is precious little. Even those who disagreed eventually admitted on coring costs being an all consuming super idea, then said "well it's only best for World Conquest, not however how I play the game". Same with the defined victory condition. "The way I play the game" is set of nebious goalposts that are able to be moved to whatever one would like them to be, which is fine if you are a roleplayer.
It's very simple to understand.
1) This game has a lose condition, it's lose all your provinces.
2) Coring cost reductions help you get provinces, money, power and position faster than anything else possibly can. In this manner, this one single idea is extremely powered.
3) The game ends when you get to 1821, you get a victory screen and a score. The goal of this game, therefore, is to make it to 1821 with the highest possible score. A bit like an old arcade game really.
4) Your score is better (thus your performance is measured) typically, when you just kill everyone so you have no competitors. The faster you pull it off, the better. However, there are different nations to play, so there is depth in "Victory + Score as X nation".
These things are all facts, none of them have been refuted by anybody to any level of rigor or statisfaction. And no, saying that the game is a multiplayer game full of mystical super-players is not a reason to underrate coring cost reduction.
This topic was on game depth and skill ceiling, but once again is beyond all but what it seems like 3 people. It's not what I expected of this community considering the game tends to appeal to people with a really strong understanding of systems, opportunity cost, game theory and other high level strategic thought.
I am sorry if this strikes you as arrogant, but I've studied gaming my whole life, not diplomacy

. I apologise in advance for that.
If you can't agree with someone because you see them as some sort of "bad guy" to fight against, you've missed the point of a debate and we really will go no-where.
Tip:
Point 2 could possibly be refuted, if you demonstrated a better idea that gave you more position, power, etc, faster than coring reduction using math.
Point 4 could be refuted, if there was a better way to avoid the loss condition and gain score than just "kill everyone asap".
Point 1 and 3 are basically impossible to refute and are facts. Disagreement with them shows me all the people who can't see that a spade is a spade and thus save myself the effort of reading their posts.
I wanted someone to refute my points, because that is interesting, but I was left disappointed.