We’re told to worry about anyone pierced by metal, but we only see Ruin to affect people pierced by hemalurgic metal.
Answer: Yes, you can’t TRUST anyone pierced by metal, because you don’t know if it’s safe or not.
If you are viewing this on github.io, you can see that this site is open source. Please do not try to improve this page. It is auto-generated by a python script. If you have suggestions for improvements, please start a discussion on the github repo or the Discord.