This would be a very boring and not at all useful board if everyone thought they should not post (for whatever reason). And it is true that every one has opinions that are valid and need to be shared. What I would hate to see (apart from no posts at all) are:

- Posts that are nothing more than 'I agree' with no explanation as to why you agree
- People getting angry or upset because their opinions are being challenged

A forum is a place where ideas can be shared and that is the opinion of everyone who joins, regardless of experience. The dark side of that is that not everyone agrees with you and has the right to say so. Good advice comes from a combinaiton of all the information and advice presented in response to a question that has been discussed, verified from numerous sources, questioned, debated and then filtered through a common sense filter (you can buy them from all good shoe shops). It is also what you, as an individual, think of the information presented and how much of it you want to take on board based on the collaborative debate. For this to work properly, everyone has to have a say and everyone has to be aware that what they say will be put up for scrutiny by people who may have a different opinion and more experience. The ability to modify your opinions based on new evidence is a useful one to have...