I've never noticed you giving wrong advice - if anything I'd say that your replies are amongst the most sensible and well reasoned ones on the forum.
In 500+ posts, I can only think of a couple of occasions where I genuinely knew that I had THE answer - all of the rest are just suggestions of possible causes and solutions and are no better than any of yours. There have been several threads where your posts have started me off in the right direction and many more where you've filled in the blanks in my answers. I'd call that good team work.