[Sic] is used to indicate that a linguistic malformation or variance within a quotation is being intentionally reproduced from the original source, thus prevent

[Sic] is used to indicate that a linguistic malformation or variance within a quotation is being intentionally reproduced from the original source, thus preventing the reader from thinking that the disfluency was newly introduced in the act of transcription. Using it to express your personal opinion on the perfectly grammatical and accurately spelled content of the quotation is terribly confusing.