[htrp]

That's horrible business practice, you always count on a certain number of people dropping out, not noticing, and not caring..... it's kind of like overselling seats (free revenue)

[rhizome]

So? Reward people for telling you that there are some people who aren't into your thing, but that they did try. This information has value.

"Sorry it didn't work out, here's a coffee!"

I mean, by what standard of "business practice" is this "horrible?" Keep in mind we're in an era of exploding conventions.