WPMU Dev Misleading Online Landing Pages and Checkout Process Internet

I DO online advertising. All day long I'm entrenched in online checkout, landing page user experience, online conversion funnels, online advertising, paid advertising on Google and Bing/Yahoo.  Point is, I see a lot of landing pages and critique a lot of checkout processes.

Rarely do I come across scroupulous, misleading landing pages such as the ones published on WPMU Dev.

Right now, as I type this, a button says "Get Q&A >" and has a smaller banner on the button that states "Just $19".  The page in question currently is:

premium.wpmudev.org/project/qa-wordpress-questions-and-answers-plugin/

If you do CTRL + F to find 'month' or 'monthly', it does not exist.

If you search on their forum, you will find multiple people confused by the fact that after they purchase, they learn that the actual price is not "Just $19" but is in fact $19 PER MONTH.

Timothy Bowers presumes that it is the purchaser's job to catch this during the CHECKOUT process rather than for them to state this most important fact on their landing page.  Their support staff sees nothing wrong with the fact that the user discovers after they have purchased.

So what this is, it's really an online bait-and-switch.  They tell you it's $19 up-front (on their landing page) and during checkout, if you miss the fine print stating that monthly recurring payments will be set up, that's your fault.

No, WPMU Dev has some seriously shady online business practices that are simply misleading.