[Scspamcop] Don't understand reporting address

[Patto]

http://www.spamcop.net/sc?id=z1776247525z4159a055c0c7a645460cdb4ce83e7125z

Spam URL http://sns24.com/secret14/ is 221.186.69.122

221.186.69.122 is NTT/OCN -> abuse at ocn.ad.jp

Why does SpamCop want to report to report_spam at hotmail.com ?

Yes, I can see the following, but I still don't understand:
--------------------------------------------------------------------------
Parsing input: http://sns24.com/secret14/
Host sns24.com (checking ip) = 221.186.69.122
host 221.186.69.122 = pc2.i-s-n-24-unet.ocn.ne.jp (cached)
Routing details for 221.186.69.122
Cached whois for 221.186.69.122 : kira_domain at hotmail.com
Using abuse net on kira_domain at hotmail.com
abuse net hotmail.com = abuse at hotmail.com, report_spam at hotmail.com
Using best contacts abuse at hotmail.com report_spam at hotmail.com
abuse at hotmail.com redirects to report_spam at hotmail.com