For one...Walking into a crackhouse-like cook lab with people shrouded in bandana's...Bad press. Sorry. Turn on the news, you see similar looking press regarding illegal immigrants, mexican gangs, etc.
And since the general public is full of ignorant, misinformed sheep, they'll connect the two somehow, whether consciously or subconsciously. And of course, tell everyone they know that gear shrinks your dick. On a related topic, anyone notice their cock looks bigger on higher test dosages?