hotmail vs. yahoo (Score 1)

Why doesn't mail.yahoo.com have this problem? I have hotmail and yahoo accounts just like several of my friends do and our yahoo accounts don't see 1/10 of the spam that our hotmail accounts do. I don't even bother reading my hotmail anymore because every account I have there gets literally hundreds of junk e-mails per week. It's such a waste really.... but maybe this is just code-bloat karma coming back to bite Microsoft :P