What's your efficiency rating?

LiannaSilverwind: Another proof of Cap Circle being the main focus of the formula.
One account - LiannaSilverwind.
Bat-Chat
Battles: 167
Kills: 383 (2.29)
Damage: 472 845 (2 831)
Efficiency rating: 3639.9
E-50
Battles: 118
Kills: 266 (2.25)
Damage: 324 987 (2 754)
Efficiency rating: 2515.9
Two medium tanks of 9th tier. So different efficiency, although damage and frags damage is similar!
And now... the reason.
Bat-Chat
Capture Points: 914 (5.47)
Defence points: 909 (5.44)
Tanks spotted: 317 (1.90)
E-50
Capture points: 191 (1.62)
Defence points: 367 (2.20)
Tanks spotted: 244 (2.07)
Do you want to rise your efficiency? Cap or defend, rest is not so important.
My personal conclusion: efficiency wot-news formula does not prove anything and discriminates slow tanks.