I pulled your logs for the past 24 hours, I see 5 IP addresses blocked. 3 out of the 5 are without a doubt malicious traffic. The other two have entries in multiple blacklists from the past 30 days for spam postings, both IPs are also in the same subnet of a Philippines ISP.
We're going to temporarily loosen the rules until we have a method for users that are flagged to unblock themselves via a challenge such as a captcha to prove their not a bot. This should hopefully lessen the impact on people who receive dirty dynamic IP addresses.