The EXP Curve

Bingo. Level 200 means nothing anymore.

 Spoiler

Inb4 someone says nothing mattered in this game.

There are tons of things that matter in this game but it's all based on what you want. Whether someone out-levels you because the game was easier due to updates or not shouldn't matter a damn bit if you've got your head in the right place. You shouldn't be playing it as a competition. It's NOT a competition. It's a game, it can be a test of your endurance and skill, but it's definitely not a competition. And if you feel like you're not being challenged enough to make it enjoyable for you, then do something about it. Stop using pots. Stop whining about what other people are doing if they're doing it themselves (and by this I mean feel free to whine about leechers because there's no merit in leaving a game running and going afk.)