SSSS has a purpose. That purpose is to catch terrorists. Anyone who's not a terrorist is morally in the clear to evade it, IMO. I'm saving the tax system wasted money that would be spent to search a non-terrorist.

If the TSA wanted to enforce SSSS selections, it could get a better system. It chooses to have a system that's fully exploitable in any number of ways to evade SSSS. Thus, I conclude that TSA must not really care about SSSS selection, particularly in light of Dovster's noting that SSSS applies only the first time through the checkpoint.

If all my mechanisms to evade SSSS fail, I have a simple backup method: I'll drive. I'm never letting those scary screeners put their hands all over me again.