That write up is a little harsher too since it hasn't been updated since July. I wonder what they'd have him rated today. ESPN updates their scouting reports on players pretty frequent. Here's what they have to say in the last write up.
Jan 30 Update: Porter continues to grow as both a player and as the go-to guy for Georgetown. With second-leading scorer Greg Whittington out for academic reasons, Porter has taken on an increased offensive load. Over the past five games without Whittington, Porter is averaging 19 points and 9.8 rebounds per game while shooting 52 percent from 3-point range and 59 percent from the field. More importantly, Georgetown has a couple of big wins over ranked opponents in Notre Dame and Louisville. The two biggest concerns scouts had about Porter coming into the season were his jump shot and his ability to be a go-to player. He's done a great job of answering both question marks the past two weeks.
Strengths:
Long, wiry wing
Excellent mid range game
Good ball handler
Can shoot off the dribble
Good passer, unselfish Improved three point shooter
Weaknesses
Needs to add strength
Sounds like Tayshaun Prince 2.0 to me. Not necessarily a bad thing.