I don't think that artists are platinum I'm pretty sure it's albums or singles that are classified as that. But anyway I think the answer is no at least from may 2007 on based on this website
http://www.radioscope.net.nz/index.php?option=com_content&task=view&id=79&Itemid=62
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Yes.. Soon as he is released from prison. He will sell 3.7 million albums in the first week. -crash cutta
LIL Wayne was but lil boosie be blankin boosie da realist no one can ever top lil Wayne... end of story. Fxck no lil Wayne be spittinqq that BULLshxt nd he fake as the fxck out here all we jam is boosie bad asz lil Wayne pxssy asz could never a be asz real as boosie with his ol wack asz boosie go hard all the way -*Jasmine M.;
Lil Boosie and Bleek are first cousins
Hell Nawl Boosie Ain't Sacrifice Lil Phat Boosie To Real For That
lil boosie go harder and he bout what he talk about
hell naw lil boosie got them hands