Max, I'm primarily curious as to what everybody's thoughts are, I guess.
The majority of Christians, within orthodoxy, believe it is NOT a sin...
and they also believe it is just REALLY REALLY STUPID.
You've clearly already made up your mind,
because you've formulated extremely cogent answers to every possible objection.
Therefore, you need to stop BOTHERING everyone with your clever defense of tattoos,
and just go DO whatever it is you've ALREADY DECIDED to do.
If you've already made up your mind, this thread is pointless, and you're just wasting everyone's time.
Ya know, lets just cut to the chase.