I'm not familiar with this site, but I just looked and there is a "sign in" link in the top right on desktop. On mobile it's present in the hamburger menu. So I

I'm not familiar with this site, but I just looked and there is a "sign in" link in the top right on desktop. On mobile it's present in the hamburger menu. So I'm not sure what you're referring to. However, these things do happen. Your complaint reminds me of how for years, there was no apparent way to download Steam from the Steam website. The only way to get there was via one specific help article. I have no idea how they made that whole website without thinking that they should let people download Steam. But it happened.