Complexity and permutations as described there make 'pilot error' inevitable - it's a shame they call it pilot error...
The original intent of PPRuNe was to allow pilots to air safety issues without fear of action being taken against them. If pilot error is inevitable then why hasn't a single? PPruNer 135 pilot posted about it? OK, many pilots choose to post pretty openly so their real ID is obvious but they can still open a new alias here, via a VPN if needed.