This requires that you use special containers for things you do wish to have cookies for such as HN for the login. Other than that, you can safely click accept for all websites, since it won't persist anyways.
Extensions aren't a reliable solution to privacy and security. Why would you give access to all websites you visit to a 3rd party? I barely trust browser developers these days, let alone some 3rd party developer.
And, no, I can't be bothered to review their source code if it's available, or to trust that I'm actually running said code, that it won't become malicious eventually or bother with building it myself. Unless it's run on demand and for a single purpose, I suggest avoiding extensions altogether.
My recommendation:
1. Install "I don't care about cookies"
2. Install "Temporary containers"
This requires that you use special containers for things you do wish to have cookies for such as HN for the login. Other than that, you can safely click accept for all websites, since it won't persist anyways.