Same here.
Seriously, while I think some people might dismiss your comment as snark, I genuinely was interested in this service, but am unwilling to create an account just to get a sample. Sites need to realize that "creating an account", while it appears as simple as supplying a few bits of information, anyone that cares about their time or security will find a few snags.
First, the email address. I don't give my email address away without thought as to whether this service will contact me in the future, how often, and about what. If I'm just trying to get an idea what you offer, I don't want to have to worry about you abusing that address in the future. My inbox is busy enough, thank you, I don't want to have to deal with you later if I've decided I'm not interested.
Second, the password. When linked to a global identifier like an email address, I'm stuck with the choice of using an easily remembered password or password template that I reserve for low interest sites that the accounts don't really matter on and the reduced security this entails, or coming up with a unique secure password (which either entails my trying to be random or a tool).
Now, I could generate a fictitious email and password just to try out your site (because I'm sure as hell not going to go through the effort of making a real separate email for you), but that entails me making a random email that isn't already used (what do you want to bet foo@example.com is already taken, or that domain is barred because they use it in testing?), and I don't want to have to think about that, I'm trying to get a quick idea about your service.
So, to site developers who gate examples of their service too aggressively, keep in mind every time I'm mildly interested in your service and you gate more info with a free account form, I groan internally. Of the mild interest I felt, and the feeling that made me groan inside, which do you think wins in the end?