Thank you for your detailed and friendly reviews and I wrote a brief answer below.

Unfortunately, we do not extract tags for links already stored in Pocket. However, if you save the link to the service, it will automatically extract and store your search terms.

It looks that uBlock is blocking the popup requesting third party authentication for sign up. We will solve this problem with developers.

We set the order to emphasize "Search results on Granary.pro" rather than my own links.

We will review “move items to their folders from the search interface” and apply them in near future.

I will get a review from a native speaker as soon as possible.