GamesMMOWorld of WarcraftWorld of Warcraft veteran says MMO power leveling is a “mistake”: “Getting to level cap should be an accomplishment, not a blip"When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. GamesMMOWorld of WarcraftWorld of Warcraft veteran says MMO power leveling is a “mistake”: “Getting to level cap should be an accomplishment, not a blip"When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. (Image credit: Blizzard) World of Warcraft and League of Legends MMO veteran Greg ‘Ghostcrawler’ Street says that it’s a “mistake” to let players power level their way to the level cap. In a recent tweet, Street, who spent nearly six years at Blizzard as lead systems designer on WoW before leaving for Riot …