Melo's playoff record gets brought up as a last resort argument when people put him below players like Lebron, Wade, Kobe, etc. If you actually look at the circumstances, it's not really on him. He team just lost to better teams in a stacked western conference. Just know that Melo took a Nuggets team to the playoffs every year since day one that rarely sniffed the playoffs before he got there. So lets look at the teams he lost to.
2004 TWolves - he was a rookie and lost to a KG team that almost went to the finals. They had Cassell and Spree. The Wolves were clearly better
2005 Spurs - Better team, better coach point blank period
2006 Clippers - Lost to a Clippers team that had Cassell, Brand, Kaman and Mobely and while that isn't a championship lineup Denver's second scoring option was either Andre Miller or Greg Buckner. I mean Edwardo Najera was the starting PF on.. Earl BOykins?!?!
2007 Spurs - They traded for A.I. that year and Melo missed all of those games due to that brawl. Team didn't really have to to gel and the Spurs still had a better team.
2008 Lakers - Lakers got Pau and once again.. the lakers were just a better team. They went to the finals that year.
2009 Lakers - They finally got a high seed which got them better draws and he won 2 playoff series, but once again... the Nuggets were not better than that Lakers team that won a title after going to the finals the previous year. But it was 2-2.
2010 Jazz - This is probably the only series you can say he should've won but didn't. They got rid of A.I. for Billups but the Jazz had Boozer, Williams, Millsap and the Nuggets basically had no consisent 2nd option after Melo.
2011 Celtics - Can't blame Melo for that ass of a lineup he had to play with.
2012 Heat - Heat were just a better team and they won the chip.
So basically, Melo had to play in a stacked western conference for the early first half of his career. Not his fault. You can't honestly say that he lost to teams that were lesser than his. KG never caught flack for not even getting to the playoffs let alone losing playoff games. Basketball isn't about ONE player, Teams win titles. Wade won his first title with veterans like Shaq, Payton etc. Kobe won with a force inside be it shaq or Pau and he had a great supporting cast, but for some reason critics look at Melo's losign record like it's his fault.