
I get hundreds comment spam. Oh My God!Comment Spam - I opened a new blog 2 weeks ago (shamelesshosts.com) and already I have seen over 35 comment spams
For me Wordpress is still a reliable blogging platform. I myself never experience critical issue about this. Akimset is more than enough to stop spam comment. in related to hacked/defaced website, I think it is because the user trap to click some exploit URL or he/she has installed virus/trojan
There are some good spam protections too, it will take a while, but you should put image verification, or some intelligent questions in the form, Works.
Those 2 reasons are just same with drupal too, but now you can get rid of them easily, you will have to be alert as well, because once your site seems to be spammy, it becomes portal for more spammers.
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