Boosting exploded in BFA or whenever they started making cool mounts for it and PvP gear being both good in pve and only require 1800 rating to get the elite transmog. Before then you would meet boosters but they would be significantly higher rating most of the time and significantly rarer, and it was all for RMT. Now a days, joining up around 1900 MMR, it feels like you have a 50% chance to run into a boosting team in RBGs or a booster in arena in 2s.
Because of this, the whole game feels really weird - its fine until 1700,1800 mmr, then you hit the magic 1900 MMR number and it genuinely feels like you swapped from fighting fresh players straight off the launcher, to multi rank 1s who have played the game for over a decade.
Like as a personal example with arena, my all time peaks is 2450 or so in 2s, at that rating I was facing actual gladiators, on their mains, playing meta comps. This was in Legion. In BFA onwards, this happens at 1900 rating. I had to fight Minpojke and Ziqo x2 in a row to get 1800 rating on my druid and most seasons I have to fight Pshero+Ziqo/Hydra or Drainerx+Tren if I try to pust 1950 rating.
When you aren’t fighting actual rank 1s on their 8th alt that is gearcapped, you’re fighting one of dozens of high glad/rank1 streamers who do ‘viewer games’, which just involves the streamer playing the current FOTM OP spec, which right now is ret, queueing up with a 1500 rated player, averaging their MMR out to be around 1900 mmr, where they absolutely destroy you with superior gear and game knowledge and FOTM specs.
I personally don’t do RBGs anymore, but having spoken to people who do, I know this is the case there as well. Boosters don’t care though, because they make a living off of selling boosts or streaming ‘viewer games’, and they don’t particularly care about the fact that they are the primary cause of every single bracket dying the millisecond you hit 1900 mmr. It did not used to be this way, and they can whine all they want about how dead arena or rbgs are, but they are the primary cause of it. I’m not going to queue up to rated PvP if 50% of my games are against hydra, ziqo, pshero, minpojke, drainerx, tren, cervantes or whoever.
In short - be more like Bicmex and GTFO low rating as fast as possible. That dude sits at 3k+ on like 5 hunters at once