So lets get this straight, a broker puts out a buy...

So lets get this straight, a broker puts out a buy recommendation which then precludes them selling shares?

Where is that rule?

What happens if they put a sell on a stock and they then buy?

Vast majority of the time if a broker is holding nomineed stock it is for clients, not the broker directly.

So if Macquarie Bank put a buy on BHP and have clients selling they should be charged?

Whats the rule again??

The rule is this, any analyst who does a report does so with out fear or favour, if there is any corporate relationship it must be declared.

That is called independence.

People buy shares for one reason...to make a profit (hopefully).

People sell shares for a myriad of reasons but normally because they need the funds.