The "Used by people at..." bit is curious and suspicious, especially in relation to their privacy claims.

Lets say it is true, there are a few scenario's.

One scenario is harmless: these people work there, are friends and told the makers they use the browser and are happy for them to use this info on the site.

Most other scenario's: they found this out from e-mail addresses or through some other means and are now using this tidbit on the site to sell their product. This isn't selling information, but it is pretty close to it. It shows that they mine your information and use it to their own benefit. It isn't very nefarious, but it isn't exactly super privacy conscious. "Oh… and we don’t sell your data." oh, but we do look through it and see what we can use four ourselves.