It's true that a bunch of positive comments from accounts without much posting history appeared in this thread. I assume that the OP's friends got wind of their launch. We tell founders to avoid that—see the bold part of https://news.ycombinator.com/yli.html—but if one wants to be fair, it's also the case that (1) this is not always easy to control, and (2) the people posting such comments think they're helping and don't have enough experience of HN to realize that it has a counter-effect.

I'm going to move the overly sus ones to a collapsed stub now. (https://news.ycombinator.com/item?id=45988584)