Spam the board, you will be banned.
Put fake reviews on hotels you are associated with, you will be banned, and the hotel concerned may be de-listed.
We ban very few users and the vast majority that we do ban are Vietnamese-based travel agents (hence the title) -- please don't join the club.
Once you're banned, that's it. There is no second chance.
A note to our readers -- we delete the spam as quickly as we can, though sometimes it sits there for a bit before it's noticed. If a place needs to spam a travel websites to get business, then we'd guess they're not doing much of a job as a travel agent...