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A high-level hire by a rival is usually bad news. So why do I suspect insiders at Classmates.com are rejoicing at the news that former Yahoo executive Rachel Glaser is joining spammy social network Reunion.com as COO and CFO? The two sites have close to the same traffic, and similar unscrupulous methods for gaining paid subscribers, charging for access to questionably accurate alumni lists.

But Glaser, a finance executive at Yahoo, was so grating that former CEO Terry Semel banned her from the corporate jet, and so underqualified that she drove more talented executives out of the company. If she was in over her head as a divisional senior vice president at Yahoo, why does Reunion.com think she'll be able to handle not one but two C-level jobs? Her hire may be enough to sink Reunion.com once and for all. Classmates.com, and victims of Reunion.com's spam tactics, will certainly rejoice.