Spam using contact form

I just get spamming using my blog contact form .. This is the spamm

Jayson wrote:
Hello. That's very nice site but I've seen this before here
[url=http://bb1.inguaro.com/35302cad1e31eeda60d9d79cd185eae9]http://text.inguaro.com/35302cad1e31eeda60d9d79cd185eae9[/url]
35302cad1e31eeda60d9d79cd185eae9

Website: http://inguaro.com/35302cad1e31eeda60d9d79cd185eae9
IP: 201.6.145.142

Osbaldo wrote:
Hello. That's very nice site but I've seen this before here href="http://href.inguaro.com/35302cad1e31eeda60d9d79cd185eae9">http://text.inguaro.com/35302cad1e31eeda60d9d79cd185eae9
35302cad1e31eeda60d9d79cd185eae9

Website: http://inguaro.com/35302cad1e31eeda60d9d79cd185eae9
IP: 201.6.145.142

Erik wrote:
Hello. That's very nice site but I've seen this before here
http://text.inguaro.com/35302cad1e31eeda60d9d79cd185eae9
35302cad1e31eeda60d9d79cd185eae9

Website: http://inguaro.com/35302cad1e31eeda60d9d79cd185eae9
IP: 201.6.145.142

What I see that the IP is same.. So who is he/she??
I've used a website that detect the IP at ARIN WHOIS Database Search

OrgName: Latin American and Caribbean IP address Regional Registry
OrgID: LACNIC
Address: Rambla Republica de Mexico 6125
City: Montevideo
StateProv:
PostalCode: 11400
Country: UY

ReferralServer: whois://whois.lacnic.net

NetRange: 201.0.0.0 - 201.255.255.255
CIDR: 201.0.0.0/8
NetName: LACNIC-201
NetHandle: NET-201-0-0-0-1
Parent:
NetType: Allocated to LACNIC
NameServer: NS.LACNIC.NET
NameServer: NS2.DNS.BR
NameServer: TINNIE.ARIN.NET
NameServer: NS-SEC.RIPE.NET
NameServer: SEC3.APNIC.NET
NameServer: NS3.AFRINIC.NET
Comment: This IP address range is under LACNIC responsibility
Comment: for further allocations to users in LACNIC region.
Comment: Please see http://www.lacnic.net/ for further details,
Comment: or check the WHOIS server located at http://whois.lacnic.net
RegDate: 2003-04-03
Updated: 2007-12-17

OrgTechHandle: LACNIC-ARIN
OrgTechName: LACNIC Whois Info
OrgTechPhone:
OrgTechEmail: whois-contact@lacnic.net

So this is the Scammer from MExico.. Why they spam me?? I'm not Mexican..
DO you get this spammer?? Let's share..