I often wonder if such people are being encourage by those who seek to undermine the concept of whistleblowing as a whole. Like encouraging the appending of 'gate' to every scandal name, even trivial ones, to minimize the seriousness of Watergate.
EDIT: I should point out that an effective strategy to undermine opposition is to encourage the worst in them by secretly supporting those who embody the worst. When doing this it helps to have contacts in the media on your payroll.