::"Usefulness" is not a criterion for retention or deletion of information on Wikipedia. If you do indeed find it usefuland I will not judge whether you think sothat information should be "findable" elsewhereWikipedia is not its home. You might consider moving the information to an appropriate "fansite".    
 :You have the burden of verifying the information; you have the burden of showing that the content is within Wikipedia's guidelines on neutrality; and you have the burden of showing that the information is not what Wikipedia is not (and especially, that the information included is discriminated). "Censorship" this is not.