Being quite new to the site, I'm curious if there is any established protocol with regards to action toward answers that are incorrect (e.g., produce incorrect / incomplete / etc. results). Is it appropriate to comment on the answer as such, or to place such a caveat on one's own answer if provided for the question? Or is is more of a caveat utilitor situation?
I've recently seen several accepted answers that are flat-out wrong, leading me to wonder how many future readers might be led down a rabbit-hole, yet it feels... confrontational to think of "calling out" an answer. This is one of the few times I wish for a "private" means of conveying concerns to a poster.
So, is there some unwritten rule-set around this matter?