personally, I wouldn't be the same person.
I didn't know english when I first started playing W:A. My grades were the worst in the class.
but the experience of communicating with people here has given me english knowledge that no courses or lessons will ever provide.
I speak with people in english everyday now.
I like to think that W:A gave me an understanding of the mentality of people from different countries.
I remember how playing kaos has significantly changed my sense of timing in the daily life. probably helped with strategic thinking too.
And it's probably the game that gave the most fun.
I like how there is no grind and dopamine hooks in the game, all the fun comes down to the fact that while someone is making a turn, you can chat with other people.
In fact, most of the game is not an actual gameplay, but just communication with people from different countries of the world. The game is really more of a "World Party", than an actual game. that name was very fitting..
Pretty sure W:A had a huge net positive effect on me, bigger than any other game, and probably more than studying at a university xD