It would be nice if you could add comments. For example, I believe that "crowdsourced audio guide for tourists" already exists and was going to add a comment to indicate that (not to say one couldn't create a competitor), but I couldn't.
I noticed that 'Top Ideas' page ranks ideas by the number of 'Awesome idea' votes. The number of 'This sucks' votes aren't taken into account. You should change this to take downvotes into account as well. +4/-20 (0.167 approval rating) should not be ranked higher than +3/-1 (0.750 approval rating). [1]
Also, seeing as the site is titled 'HackerIdeas', you should target it specifically to hackers. I don't care about a company that prints advertisements on toilet paper. That's just annoying.
[1] Approval ratings calculate using this formula: up / (up + down)
That's a very good point. I will work on that next after the comments are implemented.
As for the posts on there, they're not added/moderated by myself. They'll be downvoted over time if they're not appropriate and so it shouldn't be an issue.
It would be awesome to rather have a wiki system for new ideas. Then it could be use as a collaborative tool, instead of having a chain of hundred of comments.
I can't talk for everyone, but I would. There are tons of ideas that I have no time to work on and I would like to help someone else do it. It's all for the greater good, after all. That's why people would help, I think.
Hey, is there a way I could contact you directly for a couple of feedbacks/ideas on your website? I checked your profile but there is no email. Let me know!
For those sites, I'd agree with that. They're pretty flippant. But this is different (I felt that people could make career decisions partly based on these votes) and I found it uncomfortable choosing "Awesome" for an idea that I thought could be OK, maybe.
There was a "Sign up for more" link hidden behind any + button next to any idea. I clicked it, and a registration form popped up, which asked me (among other things) for gender.
BTW. still didn't get a confirmation link :). Also, can't see any indication that I'm logged in, but the "Sign up for more" link got replaced by "Add to favourites". Did I break something? :D. I guess you're working on this site as we speak.