years and reflexes took get_right's skill
his sickness has uknown couse (DNA probably)
and same playstyle over 10 years
It might not be that GeT_RiGhT is any worse than before, just that everyone else is much better.
gtr is geting older, reflexes are slower. there is also a ridiculous amount of pro players that have the resources provided by organizations to just play nonstop and have the best aim they can possibly have, so his whole "play the game 12 hours a day" thing isnt very different from everyone else. he can't just grind to get better anymore, he's plateaued and young talents are getting better aimwise.
he really went downhill after health issues
he was pretty decent until then
and f0rest/adren are the proof that age doesn't affect THAT much
Maybe lack of motivation, maybe the scene got harder to handle, the thing is no top player from cs 1.6 is doing very good atm. f0rest average, gtr bad, neo very bad.
It might be like a player in any other sport. Just getting older
I think it's a combination of many things
The game changed a lot, maybe he's having a harder and harder time to adapt to every changes, nerfs, buffs...
As you get older you lose your reflex, someone in his early 20s will on average be faster (not by a huge margin) then someone in his 30s
Overall, most of the players are getting better and are yet to reach their peak, while gtr peacked some years ago and has been stagnating ever since
When you get older, the average amount of shit in your life is substantially higher than in your childhood/yearly adulthood, no matter how successful life you live. (People around you die a lot. Long year relationships crumble a lot around 30. etc. etc.). This shit takes a lot of capacity to focus out of your brain. And by focus I don't mean just the focus during your game. Focus on your goals, training routine etc. .
Some people are outliers, like in anything else, but in general, getting old takes a huge toll on your ability to fully focus.
Other players got better. He got worse cause of age. The scene is way tougher for competition than it used to be. The motivation probably isn't as high as it used to be for him. Doubting himself probably as well.
His sickness for one took a toll on him but it's a motivation issue as well. He has been playing this game for more than 12 years now. I doubt he has the same motivation in this point at his life.