I think queuing with a team of bots would make it easier, and from what i understand, you can even queue with swiss as much times you want? And the opposite team would be much less likely to report you for botting too since they are getting a free win and wouldn't notice as much. Also isn't there a limit on gold for unranked/ranked? Last i read about it was 15g daily
Mind you, i'm just trying to remember you folks what happened to gw1 where the only people left doing these sort of tourneys were bot themselves ;3
The much more visible nature of the AT's seems to result in more reports and they seem to be much easier to catch. We've dishonored several teams for tournament botting in the past and will continue to do so.
Though, it's been a while since I was directly told of people botting in tournaments, so it seems it's not very frequent.