Earlier quoted context omitted.
Their grades are based on objective assessment of properties of underlying technologies. They are very useful for most people, who are not going to study cryptography for several years and then manually reading and checking source code of every communications software product out there.
No. They're not useful. They were a disaster, and EFF should stop doing them (I think they have?) https://news.ycombinator.com/item?id=10525266
> https://news.ycombinator.com/item?id=10525266
Seems like most of the critiqued stuff has changed. By the time i got to EFF recomendations Signal was the winner and use of telegram and cryptocat was discouraged.