Looks like the page is having some trouble. It finally displayed for me, but said "Up to 0% off!" and no games listed, so yeah, broken (at least, in the Featured Franchises section, where there's also no games listed under any of the franchises, LOL).
Its worrying when you see stuff like that pop up (no pun intended). I think Steam should be more careful about the rubbish they put up for sale. There are a lot of youngsters who likely use the site.
Insufficient control and the lust for profit.
I've Googled how to report a game on Steam, but none of the results are accurate. Not that I care - people want to play anime pr0n games, be my guest - I just don't want to see that shite in my store page. Especially if someone is looking over my shoulder and sees that and wonders what I'm on about, eh?