I have seen no evidence of this, and it has been a problem for years. At least the forums largely believe that there is a serious deranking problem now, largely thanks to BTC constantly posting videos on the topic I believe.
However, forum opinion isn’t really relevant. It’s the devs that, well, develop the game and they are showing no signs of addressing the problem.
They said they were rolling out anti-throwing measures with role queue, but whatever mechanism that is, it’s either fully in force or over and done with. It probably specifically compared pre- and post-role queue MMR and is no longer relevant, but they weren’t entirely clear.
Of course, Jeff Kaplan did answer a question about free duplicate console accounts and they he said they have some ideas about that, that they might work on after OW2. Which would be nice for console players, but wouldn’t solve the problem completely … account farmers would just buy new copies the same as they do on PC, but at least it wouldn’t be a free for all. It wouldn’t help PC at all.
If they have any plans to address deranking in a more general sense, they haven’t shared them with the playerbase. Given how long the game has been out and they haven’t addressed the problem yet, I suspect they aren’t going to. Ever.
Blame the Controller (BTC) is a YouTuber who covers Overwatch, and in particular cheating/deranking problems.
I’m not saying unequivocally that it does not exist. I’m saying they are busy with Overwatch 2, and there’s no evidence that something exists.
I think you mean this exchange, which is a question specifically about unlimited accounts on consoles with an answer specifically about account creation on consoles. There is no indication that there is any larger system being worked on, only that they are hopeful about doing something about the console account creation problem.
Sure, there could be a bigger anti-smurf system that they are working on, but that’s not what Jeff confirmed. He only confirmed they have ideas about console account creation that could “possibly” be worked on for OW2 or later.
Jeff is careful with his words. If he wanted to say they are actively working on the smurfing issue he would have said that. Instead, he chose to say they have possible ideas for the console account creation issue. People that try to read dramatically more into what Jeff says than is actually there are usually disappointed.