[nb1]

I really like this concept as I've typically found this data extremely difficult to find. Traffic data is a little easier with tools like SimilarWeb and SEMRush, but finding verified revenue data is difficult. Here are a few questions/comments that I had at first glance:

1) The site went down after I tried to login.

2) Can anyone submit data? Do they have to have a source?

3) It would be helpful to have filters for viewing the data.

4) You could consider adding a box for categories that the users could input. For example, you could have users select web apps as a category.

5) Personally, I'd have hesitations about submitting my data. You might get more data if users could submit under a general category or psuedonym, without disclosing the name of their business to the public.

Hope this helps!