Not to debate which team bonus is better, but i feel that its underselling it to label it as just 5 stone saved because the stone cost becomes 0. Which means you can spam outposts without having to divert any of your eco to stone. Its just more streamlined.
I personally spam outposts whenever i start mining stone qnd if they cost no stone id start placing from min feudal (open maps) which i reclon would be very helpful.
I actually meant 2 stones (he said half), I just typed it wrong. 
I can understand. The difference between requiring 1 stone and 0 stone is much greater than 5 stone and 3 stone.
Yes I think so. kind of like mayan team bonus that make half price which would be 3 stone
Well i agree that 2 or 3 players on discord against 2 or 3 without it have an adventage that share vision and better pings could help reduce.
I dont think devs are going to read or change this, but there you go my upvote.
Really supprise that developer rework this when 43% of the voter againist this idea
So naive to think that a 38 voters poll could represent a community desire
DEVS are smarter than forum it seems lol. time to give this buff treatment to other meh civs as well