Should spam-IP be blocked?

listed here: http://www.ip-blacklist.de/destination.html
See: http://www.liveipmap.com/5.39.219.144 (complaint e-mail spam)
Spam-rats: http://www.spamrats.com/bl?5.39.219.144
bad IP: https://www.badips.com/info/5.39.219.144
Detected: https://www.projecthoneypot.org/ip_5.39.220.85
See: http://mxtoolbox.com/subnet/default.aspx?filter=5.39.219.0/24
Spam harvester: http://www.projecthoneypot.org/ip_187.37.3.56
5.39.219.144 Blacklisted in cbl.abuseat.org etc. → http://www.magic-net.info/black-list-checker.dnslookup?black=5.39.219.144&Check_RBL=Blacklist+check (only obe whitelisted results)

polonus