I don't think I've ever had any bad advice, mostly because I don't ask for help. I have a friend I run things by, but I trust my own judgment on colors and patterns and such. As for technique, I just read on the board for awhile and somebody will address what I want to know!!!!! And if people contradict each other, as they will, I try out what I think will work.
Sometimes it does and sometimes it doesn't, but then it's my choice and I have no one to blame but me. I consider everything a learning process, so I don't even blame me.
I do agree that one should perhaps not sew, at least by machine, when tired. That's almost always when I make a mistake.