As a former web developer and someone who has worked in printing/publishing for some 20 years, when someone asks me to look something over ("all input is welcome") I give an honest assessment of errors I find. It's sort of in my blood now but I do try hard not to "slam" anyone. It's also easier to correct errors early on rather than wait until something is almost finished only to find it's a freakin' mess. Trust me, that's no fun at all!!