It doesn't violate the rules if it's placed in respective session, however little point to do that because it will quickly get spammed by broker shills and trusted opinion would be hard to get out of there.

Broker scam

You won't find volume for fx since trading is done against dealers.

Discussions on Order Flow/Volume

I lose money mostly because of impatience, hard to control myself during loss, especially a streak of losses.

Why do you lose money in trading?

Your example about random nature of price process is interesting, but please explain then will the price of a stock be random for an insider before release of stock buyback of corporate earnings release? Obviously not he can with decent success ...

has anyone EVER seen a successful trader/trading system?