I am inquiring about what measures are in place, if any, to protect innocent players from unwarranted bans due to "gold selling activity." The example I want to illustrate is a practice that almost every single trade guild currently has in place...Guild lotteries/raffles....to support the enormous amount of gold required for a trader bid in a good spot.

So, lets say I send gold (in lieu of depositing into guild bank) to an officer or GM of a trade guild for raffle tickets (say 300k gold, that's a lot of raffle tickets). Then the recipient (the GM or guild officer) happens to also be involved with gold selling activity. In most MMOs, the devs follow the flow of money so they can see that gold from my account (in this example) was sent to the account who is allegedly selling gold, thus implicating my account in gold selling behavior.

I have heard horror stories of players being banned for cases similar to the above.

By that logic, if I wanted to grief another player (likely at the expense of my own account) could I then send 300k gold to said player along with a message or in game mail saying something along the lines of "Thank you for your gold purchase," then have a friend report their account for gold buying behavior?

It could just be gossip, but I think they are legit concerns.