itch- yes, there are some cheats around, but there are also a ton of excellent video game players here. If you read how the first 49 was achieved in stroke play you'll understand how the majority of the low CTTH scores are being posted.
WGT does not require tournament rounds to be completed. That's the video game aspect of this game. Right now there are probably a fair number of the best players who are playing hole #1, taking notes and only going to hole #2 following a hole-in-one. If they don't hole out on #1 they simply drop the round and start again. Next, it's the quest for holes 1 & 2. Then, 1, 2 & 3. And so on.
I fully expect that some of those players are probably acing the first 5 or 6 in a row already and will have aced all 9 in a row soon using that method. No cheat necessary.