Sorry if this is "necroing" or whatever, but honestly, I need to state something here. I think you all are missing the point on what the original post means here.
The problem isn't mainly the ads, like sure, ads on the side of the page are okay, but this is different. What the login tab does is redirects you towards ads, and they are very suspicious. Even if they don't have malware/viruses/etc it's still pretty... off. And yes you can exit from them, but paranoid people like me tend to freak out over them anyway.
I understand if they need money, but it's better to just have ads on the side of the login page instead of redirecting you to one. It's fine if they spam ads all over that page as long as it doesn't redirect and aren't suspicious, but until then, it's just a huge problem. I don't want to deal with an ad in order to play a game, just saying.
Once again I know they need money, but the login tab forcing you to deal with suspicious ads shouldn't be the way to get it.
sorry if this sounded harsh or anything I probably should've worded this better