I can't help to think that people are using this thread to cause even more scare mongering. For the most part, we are all anonymous and its not at all unlikely that fans/members of the lame site in question are coming here to spread rumors and BS.
I have come to terms with the 3.52 M33-3 release but still have minor worries. I'm already updated fine with no brick. I can understand and maybe even accept that if using an unauthorized edited version of the update, my PSP could brick.
However, once you are already updated, is there any chance that something might trigger a brick? Or is it basically, once you've updated, your good and no possible brick should ever arise?
But as I said in the previous thread, SONY is loving this. This gives them more credit for their placing such strict limits on the PSP. SONY is probably having a good time seeing all of the rumors about homebrew and CFW causing bricks.
Homebrew, especially custom firmware should be worry free like it has always been for the most part. We shouldn't need to be paranoid about certain triggers causing bricks.