I was from Hakkar before I xferred to Ner'zhul. Biomojo was the first person to start win trading. He got gladiator in Season 1 legitimately, then had a ton of screenshots from talking to GMs asking if what he was doing was okay, and then at the end of the season, they finally stripped him of everything. His record was something insane like around 350 with no losses. What they did was win trade up to where they wouldn't get many points, then disband the other team, recreate it, and get the ratings up on that team to where they could win trade it up again.

The fix they put in place makes it so that it's very unlikely to get the same team in back to back matches. Before the fix, all you had to do was queue at the same time and you'd get the same team.

Unfortunately, it's still pretty easy to do at the right hour. Just find an off hour where very few teams are queueing - on hakkar (vengenance BG), 60 minute queues were easy to find. So what they would do is queue both teams at the same time, and eventually the matchmaking system gives in as it finds no other teams to match you with and gives you the same team.

What he's doing is definitely not legit, as win trading is all about queuing up to play the same team every time, bypassing all the other players in the bracket. I seriously doubt he can go much higher as his other team has got to be close to where he'll get 0 points for them.