This is a fantastic point -- thank you. It's just it's not ready yet. I'm working on making it compatible with IE. Once it's usable, I'll definitely use it on the website.
It's good that they have the 'Give feedback' button at the bottom of the page in a rather unobtrusive manner. Often times, I go to a website for a large company and before I can even do anything on the site, they ask for feedback in an obtrusive popup.
Thanks! I also hate flashy popups and stuff like that when I'm browsing a website. I hope that giving users a way to quickly send feedback while they're on a page will not only help owners improve the website but also create a sense of participation for visitors. Maybe not on the level of Wikipedia but in a small way you can also contribute.
As someone who is constantly baffled at many UX choices made by the makers of nearly every piece of software I use, I like the idea a lot. I'm looking forward to using the service.
And I do have a small couple critique of an aspect of your website. ;)
If you could get rid of the two input boxes after I've submitted my invitation request, that would make it more clear that the submission was successful. After I hit Submit, I did not immediately see the message below. If the two boxes were gone, I would have immediately seen that message.
I really like that you specifically spell out how many emails the user will receive next to the registration form. That's a nice and explicit upfront "user promise" that I think will make people trust you more.
You may wish to allow for some kind of opt-in for future emails in the second and final email you promise to send. That way you can continue to email those people who do wish to learn more going forwards.
Nice landing page. One copyedit: "Why my visitors go away?" sounds like sad Hulk. "Why do my visitors go away?" is better, or maybe adopt the funnel-speak of the growth hackers you're trying to attract and go with "Why do visitors abandon my site?"
Its name is not based on the name of a music festival, so that at least helps it stand out in the market. Or maybe it should have gone with the flow and called itself critipalooza?
The main idea is to make it as simple as possible. So no surveys (at least at this point) etc. As a visitor, just type in a comment, maybe highlight a part of the website and submit it. As the webmaster, you see feedbacks received from users.
A sign-up page can't be a Show HN. You have to have something people can try out now. Please read the rules:
https://news.ycombinator.com/showhn.html