Images and content posted to the internet are legally declared "posted to a public place" - And, since it's all public information, linking to it is NOT a legal issue. Copying it and reproducing it IS an infringement of copyright, but linking is NOT. Your argument concerning copyright law is not applicable in this case.
Your argument about morality is laughable at best - Posting something to a public place is in effect giving permission to link to it. If you dont feel that way I suggest you dont post things to public places anymore.
It's common practice on the internet to link to images in this manner, it if offends your sense of morality you're in for a lifetime of being offended, which is fine by me, of course, however I wouldnt want to go through life constantly being offended by an act that is this common.
Regards,
spectre

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