[pp.int.general] pirate logo copyright

[Boris Turovskiy]

Hi,
my question - as a copyright-Pirate;) - is, how can the CC-BY-SA license 
of the Pirate logo agree with its trademark protection. Under the CC 
license, anybody can use the logo as far as attribution is guaranteed. 
Does the trademark registration mean that we in fact impose stricter 
rules than those implied by the CC license?

Best regARRRds,
Boris