Yep, this just happened to me today. It occurred as I was trying to enter my username and password. Every time I tried to enter the password, I would type it halfway and then the page would jump to the bottom and force open a bunch of ads.
I'm on desktop with Microsoft Edge. I keep getting redirected to the Insticator Ad at bottom of page. I see this is the place for my compliant.
Indications are the Insticator ad has been "powering" this now long history of problems for 2+2 users. Why in the world does 2+2 insist on continuing to run it? Is it that big a money maker for owners?