Apparently players are continuously getting better in this game

I guess I was aware of this but I noticed that I suddenly turned yellow in xvm. I have always been green but I have not always had such a high wn8 I have 1621 and it were green before but is not anymore. Not since last week or so.

I'm pretty sure I've been way worse at this game I have in wot's early days both been smoking weed and played pretty drunk but I've always been above 50% win rate. These resent years I don't even want to play wot if I've had a beer because I loose excessively.

I have played since beta so it's quite a long ride.

Do you also feel an increasing skill level is required in the game?

Edit: I mean of course that i have had the same wn8 all the time but now I'm suddenly yellow instead of green

Edit2: I found out that it's just my coloring that's weird somehow. I don't know why but I'm apparently green in https://wotstats.org/stats/eu/agent_327/ but not in in-game xvm.