If the browsing user selects one of the samples on the site (which is verified easily with a quick hash on the client side), why on earth are you processing it again? Load shouldn't be an issue here.<p>Honestly, users shouldn't even be able to ruin your sales pipeline by interrupting your pitch. Why let us enter any markdown? It's an example, you have a few representative samples, just take their output and hard code it and move on. As it stands now, I probably won't remember to come back so see what this is all about, and waiting for an email isn't really going to increase the odds that I come back.<p>Just some honest feedback for you. TL:DR: I was intrigued by the first page, put off by the unnecessary wait when you could've hard coded the response when a user chooses an existing sample.