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by jacques_chester 4862 days ago
Academics send mass emails.

Calls for Papers / Articles is the classic reason. The IEEE and the ACM might have proper mailing lists for that sort of business ... most academic fields do not.

Edit: I think they could lower the rate more and push mailing lists, but on the other hand a lot of users simply wouldn't notice that they're rate limited. Which could lead to entirely different brand of lulz.