Jaded: Please don't take this the wrong way, but if you don't like these kind of posts, don't read/reply to them.
This is the first time I've ever posted about a tank, I was just horrified by what they were selling and thought by posting on here it would get wider exposure. We do get newbies on here that check out before they start keeping bettas, and maybe they've seen something like that in the store and though it was cool. It's not, so perhaps that will change their mind about small containers. Perhaps, not, however this is a public forum.
And I did e-mail the guy selling them, he gave me the usual line about how bettas in the wild live in mud puddles, so this was more than enough room. He also said it's the buyers choice on how to use it. In other words, he didn't care.