Comment by readme

You could have just said: "you need to test this in other browsers"

http://blog.ycombinator.com/new-hacker-news-guideline

and your comment would have been more concise and less gratuitously negative.

Same goes for the commenter bragging about how many bugs he's found and how "insecure" this app is. You could just tell him what the problems are.

It's a show and tell project, be nice.