Interesting list. Safin is obviously the biggest name on there, especially as neither J. Johansson nor Davydenko became a name until later in their careers. Haas is also a big name.
But a few others that are very worthy of note:
1. Rainer Schüttler was runner-up at the 2003 Australian Open. The following year, he won the wooden spoon.
2. Cedric Pioline was semi-finalist at the 1999 US Open. The following Slam, he won the wooden spoon.
3. Fernando Gonzalez was runner-up at the 2007 Australian Open. The following Slam, he won the wooden spoon.
4. Schüttler and Gonzalez (and Joachim Johansson) have won two Slam wooden spoons.
PAST WINNERS OF THE WOODEN SPOON SLAM (Since 2000):
Australian Open
2015 B Kavcic
2014 F Delbonis
2013 T Haas
2012 G Muller
2011 D Gremelmayr
2010 R Haase
2009 K Vliegen
2008 D Young
2007 L Horna
2006 F Vicente
2005 F Mantillla
2004 R Schuttler
2003 H Arazi
2002 F Saretta
2001 D Sanchez
2000 C Pioline
Roland Garros
2015 M Hamou
2014 A Montanes
2013 D Kudla
2012 E Prodon
2011 D Brands
2010 R Schuttler
2009 Y-h Lu
2008 V Troicki
2007 F Gonzalez
2006 O Marach
2005 F Santoro
2004 J Johansson
2003 J Gimelstob
2002 M Mirnyi
2001 M Damm
2000 G Blanco
Wimbledon
2015 T Bellucci
2014 I Karlovic
2013 C Berlocq
2012 A Bogomolov Jr
2011 L Lacko
2010 R Delgado
2009 N Lapentti
2008 I Kunitsyn
2007 J Monaco
2006 G Rusedski
2005 V Spadea
2004 J Van Lottum
2003 D Norman
2002 JI Chela
2001 F Squillari
2000 M Russell
US Open
2015 P-H Mathieu
2014 J Benneteau
2013 L Lacko
2012 M Kukushkin
2011 K Beck
2010 I Marchenko
2009 D Tursunov
2008 B Evans
2007 F Gonzalez
2006 J Morrison
2005 N Okun
2004 M Safin
2003 J Johansson
2002 A Calleri
2001 N Davydenko
2000 B Bryan