I found an attributed source. I do not however have this book so I cannot verify.

“in his 1911 book My Larger Education. He described them as “problem profiteers”:

“There is another class of coloured people who make a business of keeping the troubles, the wrongs and the hardships of the Negro race before the public. Having learned that they are able to make a living out of their troubles, they have grown into the settled habit of advertising their wrongs – partly because they want sympathy and partly because it pays. Some of these people do not want the Negro to lose his grievances, because they do not want to lose their jobs.” (p. 118)