Well there were some good wishes and constructive criticism there too, though hidden among some harsh words. I'd say it's better to learn from words of the more experienced players rather than learning it the hard way and try to ignore the crueler comments. But if you can't easily deal with the hostile nature of this game, it'd be healthier for you to leave, as you've said. It's always sad to see a player leave, but I wish you good luck on your journey.